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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!

<p> <strong>Numeric Data Types in Coding</strong> <p> <strong>Types of Numerical Data</strong> <p> For storing whole numbers without decimals, like 35 or 1000, use 'int'. For storing floating point numbers (with decimals), like 3.14515 or 9.99, use 'float' or 'double'. <p> <strong>Integers</strong> <pre> int myInteger = 1000; printf("%d", myInteger); </pre> <p> <strong>Floating Point Numbers</strong> <pre> float myFloat = 5.75; printf("%f", myFloat); </pre> <p> <strong>Double Precision Floating Point Numbers</strong> <pre> double myDouble = 19.99; printf("%lf", myDouble); </pre> <p> <strong>Float vs. Double Precision</strong> <p> The precision of a floating point value shows the maximum number of digits possible after the decimal point. The precision of 'float' is circa 6 or 7 decimal digits, whereas double precision variables have roughly 15 digits precision. It's usually safer to use 'double' for most calculations. However, remember it takes up twice the memory space as 'float' (8 bytes instead of 4 bytes). <p> <strong>Scientific Notation</strong> <p> Additionally, a floating point number can be a scientific number with an "e" indicating the power of 10. For instance: <p> <strong>Example</strong> <pre> float f1 = 35e3; double d1 = 12E4; printf("%f\n", f1); printf("%lf", d1); </pre> <p> <p> </p></p></p></p></p></p></p></p></p></p></p></p>