Math Trigonometric Functions

float acos( float v )

Returns the arc cosine of the given argument - the angle in radians, whose cosine is equal to the argument. a == cos(acos(a)) for every value of a that is within acos()'s range.

Arguments

• float v - Argument.

Return value

Arc cosine of the argument, in radians.

double acos( double v )

Returns the arc cosine of the given argument - the angle in radians, whose cosine is equal to the argument. a == cos(acos(a)) for every value of a that is within acos()'s range.

Arguments

• double v - Argument.

Return value

Arc cosine of the argument, in radians.

float asin( float v )

Returns the arc sine of the given argument - the angle in radians, whose sine is equal to the argument. a == sin(asin(a)) for every value of a that is within asin()'s range.

Arguments

• float v - Argument.

Return value

Arc sine of the argument, in radians.

double asin( double v )

Returns the arc sine of the given argument - the angle in radians, whose sine is equal to the argument. a == sin(asin(a)) for every value of a that is within asin()'s range.

Arguments

• double v - Argument.

Return value

Arc sine of the argument, in radians.

float atan( float v )

Returns the arc tangent of the given argument - the angle in radians, whose tangent is equal to the argument. a == tan(atan(a)) for every value of a that is within atan()'s range.

Arguments

• float v - Argument.

Return value

Arc tangent of the argument, in radians.

double atan( double v )

Returns the arc tangent of the given argument - the angle in radians, whose tangent is equal to the argument. a == tan(atan(a)) for every value of a that is within atan()'s range.

Arguments

• double v - Argument.

Return value

Arc tangent of the argument, in radians.

float atan2( float y, float x )

Returns the arc tangent of two arguments (x and y). It is similar to calculating the arc tangent of y / x, except that the signs of both arguments are used to determine the quadrant of the result.

Arguments

• float y - First argument.
• float x - Second argument.

Return value

Result in radians, which is between -PI and PI (inclusive).

double atan2( double y, double x )

Returns the arc tangent of two arguments (x and y). It is similar to calculating the arc tangent of y / x, except that the signs of both arguments are used to determine the quadrant of the result.

Arguments

• double y - First argument.
• double x - Second argument.

Return value

Result in radians, which is between -PI and PI (inclusive).

float cos( float a )

Returns the cosine of the given argument.

Arguments

• float a - Argument, in radians.

Return value

Cosine of the argument.

double cos( double a )

Returns the cosine of the given argument.

Arguments

• double a - Argument, in radians.

Return value

Cosine of the argument.

float sin( float a )

Returns the sine of the given argument.

Arguments

• float a - Argument, in radians.

Return value

Sine of the argument.

double sin( double a )

Returns the sine of the given argument.

Arguments

• double a - Argument, in radians.

Return value

Sine of the argument.

float tan( float a )

Returns the tangent of the given argument.

Arguments

• float a - Argument, in radians.

Return value

Tangent of the argument.

double tan( double a )

Returns the tangent of the given argument.

Arguments

• double a - Argument, in radians.

Return value

Tangent of the argument.