Functions
float	Sin (float f)
	Returns the sine of angle f in radians.

float	Cos (float f)
	Returns the cosine of angle f in radians.

float	Tan (float f)
	Returns the tangent of angle f in radians.

float	ATan2 (float y, float x)
	Returns the angle in radians whose Tan is y/x.

float	Fabs (float f)
	Returns the absolute value of f.

float	ACos (float f)
	Returns the arc-cosine of f - the angle in radians whose cosine is f.

float	Sqrt (float f)
	Returns square root of f.

int	Abs (int i)
	Returns the absolute value of i.

float	Ceil (float f)
	Returns the smallest integer greater to or equal to f.

float	Floor (float f)
	Returns the largest integer smaller to or equal to f.

float	Log (float f)
	Returns the natural (base e) logarithm of a specified number.

float	Pow (float x, float y)
	Returns f raised to power p.

float	Deg2Rad (float degs)
	Degrees-to-radians conversion.

float	Rad2Deg (float rads)
	Radians-to-Degrees conversion.

float	InvSqrt (float f)
	Returns inverse square root of f.

float	IncMax (const float val, const float inc, const float dest)
	returns val +(or minus) inc and never goes above or below dest value

int	SysRand ()
	Range 0..32767.

int	Rand ()
	Range 0..32767.

uint8	RandByte ()
	Range 0..255.

int	RandMax (const int max)
	Range 0..max-1.

float	NLerp (const float a, const float b, const float t)
	Calculates the linear parameter t that produces the interpolant value within the range [a, b].

float	Accelerate (const float val, const float accel, const float max)
	return val that increases by accel in a weird way to the max value.

float	RandFloat ()
	Range 0..1.

float	RandCFloat ()
	Range -1..1.

float	RandRange (const float min, const float max)
	Returns a random float number between and min [inclusive] and max [inclusive].

int	Clamp (const int i, const int min, const int max)
	Returns clamped value between min and max.

float	Clampf (const float f, const float min, const float max)
	Returns clamped value between min and max.

float	Lerp (float start, const float end, const float time)
	Linearly interpolates between start and end by time.

float	CosTween (const float t)
	return (0.5f - (Cos(t * pi) * 0.5f));

float	CosArc (const float t)
	return (-((Cos(Deg2Rad(360.0f * t)) - 1.0f) * 0.5f));

float	SmoothStep (const float from, const float to, const float t)
	Interpolates between min and max with smoothing at the limits.

float	HermiteBlend (const float a, const float b, const float t)

float	Min (const float a, const float b)
	Returns the smallest of the two values.

float	Max (const float a, const float b)
	Returns the largest of the two values.

const int	f2i (const float f)
	IEEE 754 float to int.

const float	i2f (const int i)
	int to IEEE 754 float

Variables
const float	pi = 3.1415927f

const float	tau = 6.2831855f
	pi * 2

const kVec3	vecZero (0.0f, 0.0f, 0.0f)

Function Documentation

◆ Abs()

int Math::Abs ( int i )

Returns the absolute value of i.

◆ Accelerate()

float Math::Accelerate	(	const float	val,
		const float	accel,
		const float	max )

return val that increases by accel in a weird way to the max value.

◆ ACos()

float Math::ACos ( float f )

Returns the arc-cosine of f - the angle in radians whose cosine is f.

◆ ATan2()

float Math::ATan2	(	float	y,
		float	x )

Returns the angle in radians whose Tan is y/x.

◆ Ceil()

float Math::Ceil ( float f )

Returns the smallest integer greater to or equal to f.

◆ Clamp()

int Math::Clamp	(	const int	i,
		const int	min,
		const int	max )

Returns clamped value between min and max.

◆ Clampf()

float Math::Clampf	(	const float	f,
		const float	min,
		const float	max )

Returns clamped value between min and max.

◆ Cos()

float Math::Cos ( float f )

Returns the cosine of angle f in radians.

◆ CosArc()

float Math::CosArc ( const float t )

return (-((Cos(Deg2Rad(360.0f * t)) - 1.0f) * 0.5f));

◆ CosTween()

float Math::CosTween ( const float t )

return (0.5f - (Cos(t * pi) * 0.5f));

◆ Deg2Rad()

float Math::Deg2Rad ( float degs )

Degrees-to-radians conversion.

◆ f2i()

const int Math::f2i ( const float f )

IEEE 754 float to int.

◆ Fabs()

float Math::Fabs ( float f )

Returns the absolute value of f.

◆ Floor()

float Math::Floor ( float f )

Returns the largest integer smaller to or equal to f.

◆ HermiteBlend()

float Math::HermiteBlend	(	const float	a,
		const float	b,
		const float	t )

◆ i2f()

const float Math::i2f ( const int i )

int to IEEE 754 float

◆ IncMax()

float Math::IncMax	(	const float	val,
		const float	inc,
		const float	dest )

returns val +(or minus) inc and never goes above or below dest value

◆ InvSqrt()

float Math::InvSqrt ( float f )

Returns inverse square root of f.

◆ Lerp()

float Math::Lerp	(	float	start,
		const float	end,
		const float	time )

Linearly interpolates between start and end by time.

◆ Log()

float Math::Log ( float f )

Returns the natural (base e) logarithm of a specified number.

◆ Max()

float Math::Max	(	const float	a,
		const float	b )

Returns the largest of the two values.

◆ Min()

float Math::Min	(	const float	a,
		const float	b )

Returns the smallest of the two values.

◆ NLerp()

float Math::NLerp	(	const float	a,
		const float	b,
		const float	t )

Calculates the linear parameter t that produces the interpolant value within the range [a, b].

◆ Pow()

float Math::Pow	(	float	x,
		float	y )

Returns f raised to power p.

◆ Rad2Deg()

float Math::Rad2Deg ( float rads )

Radians-to-Degrees conversion.

◆ Rand()

int Math::Rand ( )

Range 0..32767.

◆ RandByte()

uint8 Math::RandByte ( )

Range 0..255.

◆ RandCFloat()

float Math::RandCFloat ( )

Range -1..1.

◆ RandFloat()

float Math::RandFloat ( )

Range 0..1.

◆ RandMax()

int Math::RandMax ( const int max )

Range 0..max-1.

◆ RandRange()

float Math::RandRange	(	const float	min,
		const float	max )

Returns a random float number between and min [inclusive] and max [inclusive].

◆ Sin()

float Math::Sin ( float f )

Returns the sine of angle f in radians.

◆ SmoothStep()

float Math::SmoothStep	(	const float	from,
		const float	to,
		const float	t )

Interpolates between min and max with smoothing at the limits.

◆ Sqrt()

float Math::Sqrt ( float f )

Returns square root of f.

◆ SysRand()

int Math::SysRand ( )