Printf
To output values or print text in C, you can use the printf() function:
#include <stdio.h>
int main() {
printf("Hello World!");
return 0;
}What’s \n exactly ?
The newline character (\n) is called an escape sequence, and it forces the cursor to change its position to the beginning of the next line on the screen. This results in a new line.
More information about Escaping Sequences
How to print variables
float
How to print a fixed digit number after the dot:
float num = 1.234567889
printf("%f", num); //OUTPUT: 1.23456789
printf("%f.1", num); //OUTPUT: 1.2
printf("%f.2", num); //OUTPUT: 1.23
printf("%f.3", num); //OUTPUT: 1.234