Understanding how variables and data types work is essential to master any programming language. In this article we will review the basic concepts of variables, operators, data types and type conversions using the Python language. We will cover both theory and practical examples so you can apply these concepts in your own programs.
Input/output operations (I/O) allow a program to communicate and exchange data with the outside world. In this article we will see in detail input operations from the keyboard or a file, and output to the screen or a file.
When we embark on the exciting journey of learning to program, we soon discover that programming is not just about writing code, but also about controlling the flow of that code. We can compare it to the flow of decisions we make in our daily lives. For example, if it’s cold outside, we put on a coat before going out. If we have no pending tasks, we go to the movies. Our actions depend on these evaluations and decisions. Control flow is, essentially, the way we decide which part of the code runs, when it runs, and how many times it does. To do this, we have a variety of structures that allow us to make decisions, repeat actions, and split our code into logical blocks.
In the vast and exciting world of programming, there are concepts that are fundamental pillars for any developer, regardless of their experience level. One of these concepts is functions. What are they? Why are they so crucial? Let’s find out!
Recursion is a fundamental concept in programming that allows a function to call itself. At first it may seem counterintuitive, but mastering this approach opens the door to elegant solutions for certain problems.