Showing posts with label python programming. Show all posts
Showing posts with label python programming. Show all posts

Tuesday, August 10, 2021

Python Vs Scala Which Language Is Better For Machine Learning



 In this blog, we will learn about Python VS Scala, which is the fastest programming language for machine algorithms. Read the full article to learn about Python VS Scala.


Machine learning is the subpart of artificial intelligence and computing. In this technological age, machine learning is increasing very rapidly. There are many programming languages by which we can control the machine by writing code in machine language.


What is Machine Learning?

Machine learning is crucial because it gives a perspective of trends in the behaviour and way of working of consumers and supports the development of new products. Many of today's big industries and organizations like Google, Facebook, Uber, etc. make this machine learning an important part of their operations. Nowadays, machine learning has become a crucial competition difference for many industries and organizations.


Classic algorithms use machine language as the text is recognized as a range of keywords; Instead, an offer based on semantic judgment mimics man's ability to recognize the meaning of a sentence.


Machine learning is an essential part of the developing field of data science. As big data remains to increase and grow, the demand in the market for data scientists increases, requiring them to identify the most relevant business questions and, subsequently, the data to answer them. By Using several algorithms, statistical methods are raised to create classifications or predictions, uncovering critical insights within data mining projects.








Python VS Scala Best Ever Difference


Python

Scala

Python is a dynamically typed programming language.

Scala is a statically typed programming language.

We don't have to specify the objects in this Python because it is object-oriented dynamically typed programming Language.

We have to include the types of objects and variables in Scala language because it is object-oriented statically typed programming language.

Python is very easy to learn and easily used by beginners.

Scala is a little bit difficult as related to the Python language.

At the Runtime an extra work is created for the interpreter.

In this no extra work is created and it is 10 times faster than Python language.

In this the data types may be decided during the runtime.

In scala this does not happen that’s why while dealing with massive data processes scala may be considered instead of Python.

The community of Python is huge.

Scala also has a good community, But not more than Python.

This supports heavyweight process forking and doesn't work properly for multithreading.

It has reactive cores with a list of asynchronous libraries and that’s why Scala is a good option for implementing concurrency.

The methodologies are more complex and it is a dynamic programming language.

Due to the Statically typed programming language, testing is more easy in Scala.

Because of English-like-syntax it is more popular.

For scalable and concurrent systems, Scala plays much bigger.

Writing code for beginners of Python is very easy and easy to understand by developers.

Scala is less difficult to learn than Python and writing code is difficult by developers in Scala.

There is an interface in Python to many OS system calls and libraries. It has many interpreters.

Scala is basically a compiled language, and all source codes are compiled before execution.

Python is highly prone to bugs whenever there is any change to the existing code.

No such problems occur in Scala during execution.

Python has several libraries for data science tools, NLP(natural language processing) and for Machine learning. 

There are no such tools in Scala.

This language is used for small-scale projects.

While Scala may be used for large projects.

Python programming doesn't allow scalable support.

Scala provides Scalable support features to developers.



Python Vs Scala Advantages

Python Benefits

  • Python is very easy for beginners to use and learn.

  • It allows developers to use a set of libraries and frameworks.

  • Python allows built-in support for data types.

  • Large communities mainly support Python.

Scala Benefits

  • Scala allows a number of operational features that combine the activities within the class definitions, such as improvements, string comparisons, pattern adaptation.

  • The Scala language shares the readable textual structure features of ruby programming language.

  • It includes most JVM libraries that help developers better incorporate into the code.


Scala VS Python Disadvantages

Python Disadvantages

  • In python, memory consumption is very high due to the flexibility of data types.

  • This language is slower compared to C ++, Java and C, where languages are statistically typed.

  • Because of dynamically typed language, it uses it longer than expected when working.

Scala Disadvantages

  • The Scala programming language has limited developers in these communities.

  • In scala, type-information may sometimes be difficult to understand due to object-based skin nature and combination of activities.


Conclusion:

In this blog, our experts give you the most important difference between Python VS Scala. From these major differences, you can choose a language that is suitable for machine learning. Scala VS Python has its advantages and disadvantages, which also helps you choose the best programming language from both Scala VS Pythons.


If you also want to learn more about Python Programming Language or Scala Language, you can visit our pages. You can also take our Python assignment help and Programming language help services from our top programmers.

Tuesday, November 5, 2019

Python Vs Matlab

Here in this blog, Codeavail Experts will explain to you the best programming comparisons of Python vs MATLAB.

We regularly hear about spirits (and all research groups) that change from Matlab to Python. The apparent Python ecosystem has been developing rapidly over the years, and Python is an attractive option, as it is free, open-source, and becoming ever more powerful. This expert blog explains the difference between Python vs MATLAB.

Python Vs MATLAB (facts)


Python Vs Matlab and their ecosystems

Python, by interpretation, is a programming language. The most basic implementation is that (also known as Python) and which are often used as a new implementation. "Python It is said. In addition to the programming language and editor, Python also has a large standard library. This library is normally for programming and contains modules for OS special stuff, threading, networking, database, etc.
Matlab is a commercial digital computing setting and programming language. The concept of Matlab refers to the complete package including the IDE. The official library does not include normal programming functionality, but the reasons include matrix algebra and a large library for data processing and plotting. For additional functionality, the Mathworks Toolkit (but it gives you additional costs).
To perform clear computing in Python, you need new packages (e.g. Numpy, Scipy, Metplotlib). Additionally, you want an IDE. Many colonists come from a Linux background and use Python shell and a reader (e.g. vi or Emacs), but people from Matlab prefer a feature-rich IDE (we include). Some IDE is free, some of which are free. Now, you know Python vs MATLAB ecosystems.

The problem with Matlab

It is not our intention to offend the vote. We managed to love ourselves! However, we believe that there are some fundamental flaws in Matlab. Most of these result from its professional life.
Algorithms are proprietary, which means you can't see the code of most of the algorithms you're doing and assume that they were completed correctly.
The mean is quite high, which means that the code printed in the mean can only be done by people with enough reserves to buy licenses.
Naturally, Mathworks restricts code portability, the ability to run your code on someone else's computer. You work on the Matlab Component Runtime (MCR) while your "Compiled The app can run, but your compact app must match the story of the installed MCR, considering that Matlab can be an insect releasing a new account every 6 months.
The exclusive nature is also difficult for 3rd parties to improve the functionality of the Matlab. Gives the impossible.

Python Vs MATLAB advantages

Matlab

Of course, Matlab has its own advantages.
It consists of solid functions.
Simulink is a result for which there is no real option yet.
This can be easy for novices, as the box contains all the necessary covers, while in Python you need to keep additional packages and an IDE. (codeavail.com wants to address this issue.)

Python

Beautiful programming language
Python was designed as a common language, which is evident in reading, while the Matlab increased in terms of matrix manipulation, in which he added a programming language. As you get more familiar with Python, you will be surprised by how great it is.

Potentate
Because it's well designed, it's easier to turn your ideas into code than other languages. In addition, Python starts with extensive standard libraries and has powerful data types such as lists, sets, and dictionaries. These definitely help you create your data.

Namespace
Matlab helps the namespaces for the purposes that you type, but are the original namespace of Matlab; Each role is defined in the global namespace. Works with Python modules that you need to send if you want to use them.
Everything in Python is an object, so each object has a namespace. This is one of the reasons that are very good at the idea of Python.

Introspection
This is the result of the object-oriented world of Python. Because a program has a clean home, though it's easy.
Private variables are only in accordance with the law, so you can access any part of the application, including some internal of Python.
Program-off, in good programming practice, you won't use private variables from other locations, but it's excellent for debugging!

String Manipulation
It's incredibly easy in Python.
I write this code in Matlab, which has a correct-right line of 20 characters: .replace ('Matlab','Python'). rjust (20)

Portability
Because Python is easy, your code can run anywhere.
In addition, it is working on Windows, Linux and OS X.
Class and function definitions
Tasks and classes can be specified anywhere.
In one file you can design as many functions and classes as you want. You can also specify one in the command shell if you need to.

Great GUI Toolkit
With Python, you can create a front-end for your app that looks high-grade and works well. You can choose any major GUI toolkit such as Wx or Qt.

Python Vs MATLAB Syntax 

You will learn how to transform your MATLAB programming into Python programming. You'll have read about the basic syntax differences between Python vs. MATLAB, see an overview of basic array operations and learn how they differ between Python and MATLAB and some ways to try automatic conversion of your program.
The most important technical difference between Python vs MATLAB is that in MATLAB, everything is managed as an array, while everything in Python is a major common object.
For example, in MATLAB, strings are arrays of characters or strings of arrays, whereas, in Python, the wire contains an object of its own, called str. Here's how you compare programming in each language, the results you'll see below.

You will probably see this Syntax

Here our experts will give you some examples. These examples also show you some more basic Python language characteristics.
1. Start with Comments in Python
In MATLAB, a comment is anything that marks the percentage on a line (%) follows. In Python, comments are anything that follows the hash or pound sign (#).
2. Whitespace is important at the beginning of a line in Python
When you write code in MATLAB, blocks such as statement, for and loops, and the definitions of the function end with the last keyword. This is usually considered a good practice in MATLAB to indent the code within the block so that the code is visually grouped, but it is not syntactically required.
In Python, indentation at the beginning of a line is used to depict the beginning and end of class and function definitions, if statements, and for and loops. There is no last keyword in Python. This means that indentation in Python is very important!
3. Conditional details when using elif in Python
In MATLAB, you can build conditional details with if, elseif, and others. Such statements allow you to control the flow of your program in response to different situations.
4. Calling functions and indexing sequences in Python use different brackets
In MATLAB, when you want to call a function or when you want to index an array, you use the round bracket (()), which is sometimes called parentheses. Square bracket ([]) is used to create arrays.
Python uses individual syntax for calling functions and indexing sequences. In Python, using rounded brackets means that a function must be executed and indexed using square brackets.
Python uses square brackets to index lists and round sequences for calling tasks.
5. The first index in a sequence in Python is 0
6. In MATLAB, you can get the first value from an array by using 1 as an index.
7. The index of the last element of the sequence in Python is -1

In MATLAB

You can get the last value from an array by using the end as the index. This is useful when you do not know how long an array is, so you don't know which number to reach the last value.

How to handle exceptions in Python
MATLAB allows you to try a statement of the program and catch any errors thrown by the code.
Once you have caught an error, you can process the next error and assign variables depending on the type of error.
In Python, a big difference from MATLAB is that you can only catch certain types of exceptions and handle them.
This allows all other exceptions to continue the display for the user.
If you want to know more about how you want to do it in Python, you can try and handle exceptions except for blocks.

Conclusion

Now, you know the programming comparison of Python Vs MATLAB in detail by Python and MATLAB programming professional experts of CodeAvail.

If you want to get the best python programming assignment help or MATLAB Assignment Help at an affordable price, our experts are available to help you 24/7.

Friday, September 20, 2019

PHP vs Python

Here, in this blog of PHP vs Python, you will find out the best tips and detailed comparisons about what's best for a career.
PHP has a quick learning curve, but if we talk about the period ahead, Python is more generous than PHP.
According to programmers, the proper framework for Python is the Django Framework, while PHP works on Kohana and Zend, etc., when we come to Python, PHP is more readable than other programming languages.


PHP

PHP-"Hypertext Preprocessor" Stands for, is a widely used open-source general-purpose scripting language.
It is especially entertaining for web development and can be embedded in HTML.


Python

It is an explanatory, object-oriented, high-level programming language with dynamic semantics.
Python is simple, we can easily learn that the syntax emphasizes readability and therefore reduces the cost of program maintenance.
Python has modules and packages that stimulate programmable modules and reuse code.


Which is better, PHP Vs Python? Why?

  1. Python helps to better write to understand the code.
  2. It has a more small and clean syntax that helps developers.
  3. Things can be done in the same way in this programming language.
  4. More and stricter: No 2 == “2” and other unusual things like in PHP.
  5. Python has a more centralized and powerful standard library. There are some difficulties, but Python's library is much more helpful than PHP.
  6. Python programming is more helpful in working with a discount. and working to improve working with discounts in future versions.
  7. No errors in PHP. Just Exception subclass.
  8. Better use of namespace and import.
  9. Better OOP.
  10. All things are objects: type, function, object, module.
  11. All things can be introspected.
  12. Metaclasses.
  13. The more expert support of functional programming style.
  14. with Unicode support much better in Py3k.
  15. Syntax sugar for lists, dictionaries.
  16. Interactive interpreter mode, with some different better interactive mode implementation.

Let me help you know about the Php Vs Python:-

Php powers websites like:
  • Wikipedia
  • Flickr
  • Yahoo
  • Tumblr
Whereas Python achieved its demand status when Google selected it for powering some of its well-known projects, but now Python is one of the dominating languages which power websites like :
  • Youtube
  • Instagram
  • Reddit
  • Nasa
  • Quora

Python Vs PHP-

Here are some cases when we use PHP is a safe option:
Prototype. If you believe that your MVP will only work for clarification purposes or you will have to rewrite your output later in any way, and you will not face the legacy code later.
Small project. Only if they are specific and have all the standard features, though.
Legacy code of a real project.
You know that it provides a solution for your particular demands.
On the other hand, Python is considered nothing other than a trending programming language, Python has certain definite advantages:
It's easy to read. It's easy to manage. A well structured and simple code will always cost you less in developers hours in the long run.
Python is very friendly with OOP means better architecture that allows performing changes and new features while making changes with best practices.
Huge potential for AI and machine learning. Python supports a huge variety of AI-Framework, here are a few:
Tensorflow
numpy
PyTorch, etc.


Python Vs PHP: do you know what is common between them?

Both languages are easy to learn (compared to C++, Perl, and others)
The user-friendly developer community facilitates the learning and working process with PHP and Python.
Both languages are open source and can be updated and upgraded by users for the purpose of improving it.
Portability and versatility: Both languages have IDEs for all major operating systems.
Both languages have comprehensive and detailed common documents.

Second PHP Vs Python differences are as per below:

It is a Python programming language that is considered a more flexible programming language, while PHP is a strictly regulated language.
Python supports a GUI and can be used in web development, PHP, which is designed to support web applications, is more applicable in this area.
Unlike PHP, where necessary software protection tools are assured, applications written in Python are considered the safest.
Language Python uses special packages to load additional libraries, while PHP needs to be loaded manually.


The best python programming tricks:

  1. Use collections
  2. sorted() accepts a key arg which you can use to sort on something else
  3. Create XMl from dict
  4. Oneliner to see if there are any python files in a particular directory
  5. Use set operations to match common items in lists
  6. Use re.compile
  7. Printing files with potential bad (Unicode) characters
  8. Print is pretty cool (Python 3)
  9. Functions like sum() accept generators / use the right variable type
  10. Enumerate lines in for loop

Top PHP Tips 

  1. Go OOP.
  2. Stay Away from Anything Ending With _once().
  3. Develop With Error Reporting On.
  4. Use A Framework If You Need One.
  5. Use PHP’s Inbuilt Functions.
  6. Protect Your Database.
  7. Use POST Not GET.
  8. Draw Before You Code.

PHP-

Pros
Easy to learn. The syntax is very simple and follows mainstream conventions of C (and other languages).
Courteous user base and resources. If you have any problems, chances are someone else also has it and you can find out about it just by searching. If you need to get something off-the-shelf, PHP is more likely to have it.
Lots of jobs. Since a lot of projects are using PHP, companies need devs to maintain that code.
Cons
Too many tyrannical codes. It's a combination of a lot of novice developers (since PHP is easy to learn) and the fact that some open-source code is 10+ years old.

Python-

Pros
Beautiful code! While not important, most developers follow PEP8, which is a set of Python conferences. This makes for highly readable code and easy maintenance.
High (average) salary. Python developers are rarer, so if you are good companies will probably pay more for you.
Cons
Small user base.


BEST TIPS TO LEARN PYTHON IN JUST ONE MONTH:
Tips to learn Python:
  1. Code every day
  2. Write It Out
  3. Go Interactive!
  4. Take Breaks
  5. Become a Bug Bounty Hunter
  6. Surround Yourself With Others Who Are Learning
  7. Teach
  8. Pair Program
  9. Ask “GOOD” Questions
  10. Build Something, Anything
  11. Contribute to Open Source

Which one is easier to learn, PHP or Python?

Well Designed
Python has an architecture that helps it think well, design well and create a strong language. On the other hand, PHP is not so well-thought-out.
PHP is not a beautiful language as PHP, although it is completely practical. Any developer who has a good experience of creating great software is likely to write good scripts in PHP. However, to be more agile with PHP, very thorough knowledge of the nuances of the language and idiosyncrasies is essential.

Versatile

Programming language Python is a diverse programming language, almost extremely. The development of the Python website is not just a matter of use that we are looking at. Machine learning, data science, image processing, and desktop and mobile application development are some other Python use cases.
The second is PHP, which can be used for other goals than web development, but it is absolutely for designing web pages, and that's what makes the best use of it. This is a complex programming language that is to create complex web programs.

Debugging Tools

Programming Language Python has a large developer ecosystem and is just a debugging tool available for the programming language. Using these tools is very simple. It gives developers with Python debugger, but also a powerful debugger, which is easy to use and so well documented that even learners can understand it well.
PHP also offers a debugger package called XDebug, which is great. A single margin that has a Python effect requires a less debugging tool than PHP. Download packages more often than not get.

Ease-of-Learning

The syntax of Python is simple, and the code for understanding and writing in Python is simple. Python programming doesn't include curly braces like other programming languages and is surprisingly easy to understand.
If you write in Python, it is so simple to see that you practically want to show it to others. This usually does not happen with anything that is usually written in PHP web development.

More Readable

PHP is largely documented and follows a classic approach. On the other hand, Python uses indentation enforcement which is quite strict. Logically, it's readable not only than PHP but more readable than most other programming languages.

Careers options that are perfect for Python programmer-

  • Python Developer.
  • Product Manager.
  • Data Analyst.
  • Educator.
  • Financial Advisors.
  • Data Journalist.

Career in PHP-

  • PHP is also a base cost web development tool and settlement companies like it. PHP is also a good tool for a fresher that can be offered.
  • If you want to build your career as a developer, PHP or any other language, it's just a technique, so pay more attention to logic.

Conclusion-

Now you know the detailed comparison of Python Vs PHP. If you are a student or learner and looking for the best python homework help and PHP assignment help.
Our professional experts are available to provide you a solution at an affordable price within a given deadline.

Sunday, August 4, 2019

How can I improve programming skills on my own?

Here are some skills that a programmer must have:-

  • Positive attitude: A great developer doesn’t let their ego get in the way of taking feedback. A good way to instill a positive attitude is to give them interesting projects to work on, give them a sense of ownership and praise them for good work.
  • Supreme communication skills: good communication skills directly correlate with good developer skills. A great developer can understand problems clearly, they understand concepts quickly, or ask the right questions to understand.
  • Great at time and task management: Great developers are highly reliable. An important skill is the ability to estimate the amount of time needed to complete a task, communicating this and delivering on it.
  • Deep and broad technical experience: great developers have worked with a handful of technologies long enough to become experts. The right programmer for your project will be able to hit the ground running because they already know the right technologies.
  • High-end user focus: A great programmer thinks of the end-user of the software and works to solve the problems for them within the abilities of the organization.

Ways in which you can improve your programming skills are as follows:


  • Choose the programming language you would like to learn: Well this question seems to be very straight forward, especially for a beginner. Firstly you have to decide which language you are going to learn. Once you have a good command on one programming language you will be able to switch between languages very easily.
  • Read about basics and core concepts: It is very important to read the basics of any programming language while you learn to code. The core concepts although you don’t see them visually while looking at the code they are present in each and every line. Understanding the core concept is the first skill a programmer must have as its programming skill. Some of the more basic and common core concepts of a programming language are; variables, control structures, data structures, syntax, tools, etc.
  • Read, write and run: Try to create small programs or applications while reading so that you can gain practical knowledge as well. It will also help you test your skills immediately, learn to code and you can correct yourself at the same time and thus improves your programming skills. There are so many tools to test your code online and see it running. This technique will make your learning interesting and easy.
  • Try to solve quizzes or mathematical problems with programming: In programming solving a problem is not enough. Your solution must be highly optimized as well. When you try to solve a particular quiz or mathematical problem with your programming you end with a solution. But to have the best solution you must optimize your program. It must execute faster, use less memory and still be accurate.
  • Improve your programming skills by facing online challenges and coding questions: This one is a fun activity while you learn to code. Participating in online challenges and coding quizzes will help you gain more knowledge. You will meet competitors and also friends who can help you learn better.
  • Keep learning one new concept every day: Ideally, you must learn a new programming concept every day so that you can keep filling your programming skills bucket. This will enable you to increase your reach and prepare you for the future so that you can use your skill-set to solve problems.
  • Move on to advanced programming gradually: Do not go for advanced programming immediately otherwise, you will find yourself in the middle of a lot of unknown stuff. Slide into advanced programming with ease. Get your basic concepts solid and then learn 1 new advanced technique each daily.
  • Share your problem: whenever you face a particular problem. You can solve it in a better way by sharing on social media or to the communities who are dedicated to such things.
  • Join an online course: If it all sounds confusing to you then it is better to join online courses. The online courses will help you gain knowledge quickly. Choose the online course which fits your budget as almost all the good course providers are paid services. There will be many courses and depending on your expertise you can choose from beginners to improve towards advanced levels.

Conclusion:

Now you know how you can improve programming skills in a better way. Also, Codeavail experts provide the best computer science homework help and computer science assignment help to the students.  If you want to score A+ grade in your assignment, hire codeavail experts now at an affordable price and receive your solution within a given time.

Tuesday, July 30, 2019

What are the best tricks to learn Python for a Beginner?

Learn Python programming for a start. Definitive guide. Python is a well-known multi-purpose programming language created by Guido van Rossum. The syntax is simply easy to use, it makes it the perfect programming language for the first time someone decides to learn computer programming.
No programming language is difficult if you are involved in learning it. Python is simple and easy to learn due to its clear syntax and readability, so it reduces the cost of program maintenance. The syntax of Python is smaller than most other programming languages Java, C, C++.

PYTHON FOR A BEGINNER

Python is one of the most used languages. Whether web development, machine learning, and artificial intelligence or even micro-control programming – Python has made its place everywhere.
There are many other programming languages. You must have learned some of them. So why Python, why is it so special? There are many reasons to learn Python, most of which are listed below.

EASY TO LEARN

Python is considered one of the most user-friendly languages for beginners. The syntax of Python is the simplest in all of them. You don’t need to learn the types of complex variables, use brackets in-group code blocks, etc. Python is based on the basic principle of ease of use for starters.

BIG DEMAND

According to a recent survey by the Job Search and Act, Python developers are among the highest paying developers in the United States. The huge potential of Python jobs can be gauged from the fact that average rate programmers fell 6% in 2014, but Python developers still have risen to 8.9%.

IDEAL FOR WEB DEVELOPMENT

Python is much faster than other web development languages like PHP and ASP.NET.
In addition, Python has many amazing frameworks like Django, Bottle, and Pylon, which makes web development even simpler. Sites like Instagram, Pinterest, and The Guardian are all based on the famous Django framework.

MACHINE LEARNING AND AI ARE USED STRONGLY FOR

Python is the most commonly used language for machine learning and artificial intelligence operations. The Python Libraries, such as Tensorflow and Skit-Learn, simplify artificial intelligence tasks much more than MATLAB or R, which used to be the most common environment for data science and artificial intelligence functions.
Works with Raspberry Pi
Python Raspberry Pi is the most popular programming language, a portable microcomputer used in various applications such as robots, game consoles, and toys. In short, if you want to create something with Raspberry Pi, learn Python.
Well, the Python programming language in 2019 is the hottest language. As a beginner who learns the programming language, you should choose Python as it is very popular and easy to learn.

Which is the best book for learning python for absolute beginners on their own?

For this purpose, I would advise you to start from the Python track on CodeCademy: one of the best on the whole site (I began there myself) and while it suffers from the spoon-feed approach that allows that site: It’s not bad: You will really learn something.

What are the needy points to learn Python programming for beginner

If you want to start a career as a programmer, you should learn the following things that will be required in most programming languages.
Variable Declaration and Static/Scientific A global local concept of static declaration.
Examples like their run time should be understood
Understanding of Strings
Control statements such as /control statements. and /Control Statement / Statement For /images and /switch etc.
Looping such as /looping For /Images whereas /Images while doing so
Learn how primitive type and how one type is inserted into another type
Pass by variable through understanding and reference
Understanding the concepts of OOP
Concepts
Data Structures
Server-side programming
A system or library to join a database
Tools

How can improve Python programming skills for a beginner

  • Deliberate practice
  • Get Specific
  • Read More
  • Apply What You Learn
  • Teach Others What You Learn

ALSO, READ…


Conclusion:

If you are a beginner or want to get the best Python programming assignment help at an affordable price, Submit your Python programming assignment questions to our experts and get your programming assignment solution within a given time. Hire us now.