KMotionDef - Basic Maths Functions

These are standard Mathematical Functions, and are only listed here as a quick reference.

sqrtf

extern float sqrtf (float x);

Returns the square root of the supplied float x, as a float. x must be greater than 0.

expf

extern float expf  (float x);

Returns the exponential of the supplied float x, as a float.

logf

extern float logf  (float x);

Returns the natural logarithm of the supplied float x, as a float. x must be greater than 0.

log10f

extern float log10f(float x);

Returns the base 10 logarithm of the supplied float x, as a float. x must be greater than 0.

powf

extern float powf  (float x, float y);

Returns the x to the power y of the supplied floats x and y, as a float.

sinf

extern float sinf  (float x);

Returns the sine of float x, as a float.

cosf

extern float cosf  (float x);

Returns the cosine of float x, as a float.

tanf

extern float tanf  (float x);

Returns the tangent of float x, as a float.

asinf

extern float asinf (float x);

Returns the inverse sine (sin-1) of float x, as a float.

acosf

extern float acosf (float x);

Returns the inverse cosine (cos-1) of float x, as a float.

atanf

extern float atanf (float x);

Returns the inverse tangent (tan-1) of float x, as a float.

atan2f

extern float atan2f(float y, float x);

Returns the inverse tangent of float y over float x (tan-1(X/Y)), as a float.

fast_fabsf

extern float fast_fabsf (float y);

Returns the absolute value of float y, as a float.

sqrt

extern double sqrt (double x);

exp

extern double exp  (double x);

log

extern double log  (double x);

log10

extern double log10(double x);

pow

extern double pow  (double x, double y);

sin

extern double sin  (double x);

cos

extern double cos  (double x);

tan

extern double tan  (double x);

asin

extern double asin (double x);

acos

extern double acos (double x);

atan

extern double atan (double x);

atan2

extern double atan2(double y, double x);

fast_fabs

extern double fast_fabs (double y);