Trigonometric Functions
All of the functions in this section either take an angle as an argument or return one as a result. In both cases, the units of the angle (radians or degrees) are controlled by the setting of the relevant stream option.
| Function | Result | Description |
|---|---|---|
arccos(NUM)
|
Real | Computes the arccosine of the specified angle. |
arccosh(NUM)
|
Real | Computes the hyperbolic arccosine of the specified angle. |
arcsin(NUM)
|
Real | Computes the arcsine of the specified angle. |
arcsinh(NUM)
|
Real | Computes the hyperbolic arcsine of the specified angle. |
arctan(NUM)
|
Real | Computes the arctangent of the specified angle. |
arctan2(NUM_Y, NUM_X)
|
Real | Computes the arctangent of NUM_Y / NUM_X and uses the signs of the two
numbers to derive quadrant information. The result is a real in the range - pi < ANGLE
<= pi (radians) – 180 < ANGLE <= 180 (degrees)
|
arctanh(NUM)
|
Real | Computes the hyperbolic arctangent of the specified angle. |
cos(NUM)
|
Real | Computes the cosine of the specified angle. |
cosh(NUM)
|
Real | Computes the hyperbolic cosine of the specified angle. |
pi
|
Real | This constant is the best real approximation to pi. |
sin(NUM)
|
Real | Computes the sine of the specified angle. |
sinh(NUM)
|
Real | Computes the hyperbolic sine of the specified angle. |
tan(NUM)
|
Real | Computes the tangent of the specified angle. |
tanh(NUM)
|
Real | Computes the hyperbolic tangent of the specified angle. |