// Returns true if the two numbers are within eps of each other
BOOL pXequals (float a, float b, float eps);

// The floor/ceil function returns a value representing the largest/smallest integer that
// is less than or equal to x
float pXfloor (float a);
float pXceil (float a);

// Truncates the float to an integer
int pXtrunc (float a);

// abs returns the absolute value of its argument
float pXabs (float a);

// sign returns the sign of its argument. The sign of zero is undefined
float pXsign (float a);

// The return value is the greater/lesser of the two specified values
float pXmax (float a, float b);
float pXmin (float a, float b);

// mod returns the floating-point remainder of x / y
float pXmod (float x, float y);

// Clamps v to the range [hi,lo]
float pXclamp (float v, float hi, float low);

// Square root = x^(1/2) and reciprocal square root = x^(-1/2)
float pXsqrt (float a);
float pXrecipSqrt (float a);

// Calculates x^y (x raised to the power of y)
float pXpow (float x, float y);

// Calculates e^n
float pXexp (float a);

// Calculates logarithm to base = e, 2, 10
float pXlogE (float a);
float pXlog2 (float a);
float pXlog10 (float a);

// Converts degrees into radians and radians to degrees
float pXdegToRad (float deg);
float pXradToDeg (float rad);

// Sine, cosine, sin & cosine or tangent of an angle in degrees
float pXsin (float a);
float pXcos (float a);
void pXsinCos (float a, float* s, float* c);
float pXtan (float a);

// Arcsine, arccosine, arctangent ot arctangen o (x/y) with correct sign
float pXasin (float a);
float pXacos (float a);
float pXatan (float);
float pXatan2 (float x, float y);

// Uniform random number in [a,b]
float pXrand (float a, float b);

// Hashes an array of n 32 bit values to a 32 bit value
int pXhash (int* arr, int n);

// Returns true if the number is a finite floating point number as opposed to INF, NAN, etc.
BOOL pXisFinite (float a);