Math Trigonometric Functions
Header: | #include <UnigineMathLib.h> |
This class contains basic and inverse trigonometric functions.
Math trigonometrical functions are the members of the Unigine::Math namespace.
Math Class
Members
float acos ( float v ) #
Returns the arccosine 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
Arccosine of the argument, in radians.double acos ( double v ) #
Returns the arccosine 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
Arccosine of the argument, in radians.float acosFast ( float a ) #
Returns the approximated, but calculated more quickly, arccosine of the given argument.Arguments
- float a - Argument, in radians.
Return value
Approximated arccosine of the argument.float asin ( float v ) #
Returns the arcsine 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
Arcsine of the argument, in radians.double asin ( double v ) #
Returns the arcsine 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
Arcsine of the argument, in radians.float asinFast ( float a ) #
Returns the approximated, but calculated more quickly, arcsine of the given argument.Arguments
- float a - Argument, in radians.
Return value
Approximated arcsine of the argument.float atan ( float v ) #
Returns the arctangent 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
Arctangent of the argument, in radians.double atan ( double v ) #
Returns the arctangent 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
Arctangent of the argument, in radians.float atan2 ( float y, float x ) #
Returns the arctangent of two arguments (x and y). It is similar to calculating the arctangent 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 arctangent of two arguments (x and y). It is similar to calculating the arctangent 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 cosFast ( float a ) #
Returns the approximated, but calculated more quickly, cosine of the given argument.Arguments
- float a - Argument, in radians.
Return value
Approximated cosine of the argument.float cosFastFixed ( float a ) #
Returns the approximated, but calculated more quickly, cosine of the given argument in range [-pi*0.5, pi*0.5].Arguments
- float a - Argument, in radians, in range [-pi*0.5, pi*0.5].
Return value
Approximated 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 sinFast ( float a ) #
Returns the approximated, but calculated more quickly, sine of the given argument.Arguments
- float a - Argument, in radians.
Return value
Approximated sine of the argument.float sinFastFixed ( float a ) #
Returns the approximated, but calculated more quickly, sine of the given argument in range [-pi*0.5, pi*0.5].Arguments
- float a - Argument, in radians, in range [-pi*0.5, pi*0.5].
Return value
Approximated sine of the argument.void sincos ( float angle, float & s, float & c ) #
Calculates sine and cosine values for the specified angle value given in radians and puts them to out_sin and out_cos.Arguments
- float angle - Angle, in radians.
- float & s - Variable, to which the calculated sine value is to be put.
- float & c - Variable, to which the calculated cosine value is to be put.
void sincos ( double angle, double & s, double & c ) #
Calculates sine and cosine values for the specified angle value given in radians and puts them to out_sin and out_cos.Arguments
- double angle - Angle, in radians.
- double & s - Variable, to which the calculated sine value is to be put.
- double & c - Variable, to which the calculated cosine value is to be put.
void sincosFast ( float angle, float & s, float & c ) #
Calculates approximated sine and cosine values for the specified angle value given in radians and puts them to out_sin and out_cos.Arguments
- float angle - Angle, in radians.
- float & s - Variable, to which the calculated sine value is to be put.
- float & c - Variable, to which the calculated cosine value is to be put.
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.Last update:
2024-10-30
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