SDL Wiki
(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)


Compute the square root of x.

Header File

Defined in <SDL3/SDL_stdinc.h>


float SDL_sqrtf(float x);

Function Parameters

float x floating point value. Must be greater than or equal to 0.

Return Value

(float) Returns square root of x.


Domain: 0 <= x <= INF

Range: 0 <= y <= INF

This function operates on single-precision floating point values, use SDL_sqrt for double-precision floats.

This function may use a different approximation across different versions, platforms and configurations. i.e, it can return a different value given the same input on different machines or operating systems, or if SDL is updated.

Thread Safety

It is safe to call this function from any thread.


This function is available since SDL 3.0.0.

See Also

CategoryAPI, CategoryAPIFunction, CategoryStdinc

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