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C++ Math

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C++ Math

C++ has many functions that allow you to perform mathematical tasks on numbers.

Max and min

The max(x,y) function can be used to find the highest value of x and y:

Example

cout << max(5, 10);
Try it Yourself »

And the min(x,y) function can be used to find the lowest value of x and y:

Example

cout << min(5, 10);
Try it Yourself »

C++ <cmath> Library

Other functions, such as sqrt (square root), round (rounds a number) and log (natural logarithm) can be found in the <cmath> header file:

Example

// Include the cmath library
#include <cmath>

cout << sqrt(64);
cout << round(2.6);
cout << log(2);
Try it Yourself »

Complete Math Reference

For a complete reference of Math functions, go to our C++ Math Reference.

C++ Exercises

Test Yourself With Exercises

Exercise:

Use the correct function to print the highest value of x and y.

int x = 5;
int y = 10;
cout << (x, y);

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