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Begin Your Journey with C

To initiate your learning in C, you require the following:

  • A text editor for crafting C code
  • A compiler like GCC to convert the C code into a machine-understandable language

There are various text editors and compilers to select from. For this tutorial, an IDE (Integrated Development Environment) will be used by us.

Setting up the C IDE

An IDE is a software suite that consolidates the basic tools needed to write and test the code. Popular IDEs include Code::Blocks, Eclipse, and Visual Studio which are all free to use and facilitate both the editing and debugging of C code.

Note: Although web-based IDEs can be used, they typically have more limitations compared to their desktop counterparts.

We recommend starting with Code::Blocks. The latest version can be downloaded from here.

Let's Start with C

Create your first C file by following the steps below:

  1. Open Codeblocks
  2. Go to File > New > Empty File
  3. Write the following C code and save the file as myfirstprogram.c:
#include <stdio.h>, int main() { printf("Welcome to Fynd Academy!"); return 0;}

The above code might seem incomprehensible for now, we'll break it down in later chapters. For now, concentrate on running the code.

Executing Your Code

After writing the code, it's time to run it. In Codeblocks, navigate to Build > Build and Run. Your result will look something like this:

Welcome to Fynd Academy!

Great job! You've just written and executed your first C program.

Your C Learning Journey with Fynd Academy

Learning C with Fynd Academy is facilitated by our "Practice it Yourself" tool. It concurrently illustrates the code and the outcome, simplifying every new part you learn:

#include <stdio.h>int main() { printf("Welcome to Fynd Academy!"); return 0;} Welcome to Fynd Academy!

Practice it Yourself ยป

Fynd Academy Pathfinder

Track your progress as you embark on your learning journey. Best of all, it's complimentary!

<div> <h1>C Math Functions</h1> <h2>Math Functions</h2> <p>There is a collection of math functions available for conducting mathematical tasks on numbers. To utilize these, inclusion of the math.h header file in your program is necessary.</p> <pre>#include <math.h></pre> <h2>Square Root</h2> <p>To determine the square root of a number, the sqrt() function is used:</p> <pre>printf("%f", sqrt(16));</pre> <h2>Round a Number</h2> <p>The ceil() function rounds a number upwards to its nearest integer, while the floor() method rounds a number downwards to its nearest integer. The result is subsequently returned:</p> <pre>printf("%f", ceil(1.4)); printf("%f", floor(1.4));</pre> <h2>Power</h2> <p>The pow() function calculates the value of x raised to y power (xy):</p> <pre>printf("%f", pow(4, 3));</pre> <h2>Other Math Functions</h2> <p>The table below displays other notable math functions available in the math.h library:</p> <pre> Function - Description abs(x) - Returns the absolute value of x acos(x) - Returns the arccosine of x asin(x) - Returns the arcsine of x atan(x) - Returns the arctangent of x cbrt(x) - Returns the cube root of x cos(x) - Returns the cosine of x exp(x) - Returns the value of Ex sin(x) - Returns the sine of x (x is in radians) tan(x) - Returns the tangent of an angle </pre> </div>