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 |