Sign in


A recursive function is a function that calls itself.

Yep, that’s it. No, I’m not initially misleading you this time. I promised conciseness, didn’t I?


To put the ideas into practice we will solve a simple exercise where we are creating a function to replicate the operation exponentiation using recursion in C language and analyze how the information is stored in the memory stack following the next code.

Python is an interesting programming language with a lot of features and utilities. It follows a work style architecture based on the principle of “First-Class Everything”. This concept centers around the idea of having every single item of data in python belonging to a class as an object with attributes and methods.

This means that things such as integers, floats, structures of data, functions, and strings are all objects. They can all be stored in variables, passed between functions, and even be returned from them. Variables are simply references and don’t actually hold data themselves, kind of like a pointer.

What’s a class attribute?

Class attributes are attributes which are owned by the class itself. They will be shared by all the instances of the class. Therefore they have the same value for every instance.So a class attribute is a Python variable that belongs to a class rather than a particular object. It is shared between all the objects of this class and it is defined outside the constructor function, __init__(self,...), of the class.

What’s an instance attribute?

Instance attributes are owned by the specific instances of a class. This means for two different instances the instance attributes are usually different.Therefore instance attribute is a Python variable belonging…

Functions are blocks of code that are reusable throughout a program. Using them saves time, removing the need to rewrite code multiple times. Libraries, like functions also save time in that they make functiones reusable in multiple programs.

Static libraries, while reusable in multiple programs, are locked into a program at compile time. Dynamic, or shared libraries on the other hand, exist as separate files outside of the executable file.

The downside of using a static library is that it’s code is locked into the final executable file and cannot be modified without a re-compile. …

For us to be able to type ls *.c in the shell terminal there must be a shell terminal. Sound logical, but there is a lot more to it, let us break it apart to understand it. The shell terminal is this being where we write a command and the magic happens. The shell is defined as the outermost layer of an operating system, which stands in direct contrast to the kernel, the innermost part of the operating system. The shell is the part we humans can interact with. …

What is a static library:

static library or statically-linked library is a set of routines, external functions and variables which are resolved in a caller at compile-time and copied into a target application by a compiler, linker, or binder, producing an object file and a stand-alone executable.

How a Static library Works:

when you compile a source file you get an object file. Depending on your platform its extension may be .o or .obj or anything else. A static library is basically a collection of object files, kind of like a .zip file but probably not compressed. The linker, when trying to generate an executable tries to resolve the referenced…

How the Compilation Process Works for C Programs

C source files are by convention named with .c extension and we use the command “gcc” to compile C source files. (GCC stands for GNU Compiler Collection and it is a compiler system produced by the GNU Project.)


Preprocessing is the first step. The preprocessor obeys commands that begin with # (known as directives) by:

  • removing comments
  • expanding macros
  • expanding included files

If you included a header file such as #include <stdio.h>, it will look for the stdio.h file and copy the header file into the source code file.

The preprocessor also generates macro code and replaces symbolic constants…

Joshua Claudio Enrico

Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store