# What is a floating point number ?

A number , can be thought of as a projection , used for example for measuring , be it time or distance , or for countig . A number is a discrete way of measuring , discrete as in … Read More

# What is a signed number ?

The question, what is a `signed` number, is actually the question, of how to represent negative, zero, and positive integers, in a computer.

An integer is for example, `-1` or `1`, or `0`, so in other Read More

# What is an unsigned number ?

Asking what an `unsigned` number or integer is, is actually asking, how to represent the non negative integers, such as `0`, or `1` in a computer.

An integer in mathematics, is any number which belong to … Read More

# What is an identifier in c ?

## What is an identifier ?

An identifier , is used to denote an object type in `C` . An object in `C` is a region of memory , used for data storage .

```int x ; /*
x is ```

# What is a character , wide character , and multibyte character in c ?

## Characters

A `char` is a region of memory , formed of bits , large enough to hold any character of the basic execution character set . A char is the encoding , of the basic execution character set .

# C : source , execution , basic , and extended character sets

There are two character sets in `C` . The first one is the source character set , which is the set of characters , in which a C source file , is written .

So the source character set … Read More

# History of the c programming language

## The Creation of C

The `c` programming language was created by Dennis Ritchie in 1971 . It is derived from the `B` programming language , created by ken Thompson in 1969 . The B programming language is derived from the … Read More

# What is the c exit function ?

The `exit` function is part of the c standard library , and is defined in the `stdlib.h` header .

The `stdlib.h` define some types , macros , and it contains general utility functions , to perform numerical conversion , generate … Read More