File content as of revision 1:94193b31f0ee:

#include "math_ops.h"


float fmaxf(float x, float y){
    return (((x)>(y))?(x):(y));
    }

float fminf(float x, float y){
    return (((x)<(y))?(x):(y));
    }

float fmaxf3(float x, float y, float z){
    return (x > y ? (x > z ? x : z) : (y > z ? y : z));
    }

float fminf3(float x, float y, float z){
    return (x < y ? (x < z ? x : z) : (y < z ? y : z));
    }
    
void limit_norm(float *x, float *y, float limit){
    float norm = sqrt(*x * *x + *y * *y);
    if(norm > limit){
        *x = *x * limit/norm;
        *y = *y * limit/norm;
        }
    }
    
void limit_abs(float *x, float limit){
    limit = abs(limit);
    if(*x > limit){
        *x = limit;
        }
    if(*x < -limit){
        *x = -limit;
        }
    }

float constrain(float x, float bot, float top){
    x = (((x)>(top))?(top):(x));
    x = (((x)<(bot))?(bot):(x));
    return x;
}