C Math Functions
Math Functions
There is also a list of math functions available, that allows you to perform mathematical tasks on numbers.
To use them, you must include the math.h
header file in your program:
#include <math.h>
Square Root
To find the square root of a number, use the sqrt()
function:
Round a Number
The ceil() function rounds a number upwards to its nearest integer, and the floor() method rounds a number downwards to its nearest integer, and returns the result:
Power
The pow() function returns the value of x to the power of
y (xy):
Other Math Functions
A list of other popular math functions (from the <math.h> library) can be found in the table below:
| 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 |
