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Trigonometry
The trigonometrical functions are:| sin($f) | sinh($f) | asin($f) | asinh($f) |
| cos($f) | cosh($f) | acos($f) | acosh($f) |
| tan($f) | tanh($f) | atan($f) | atan($f) |
| atan2($f1,$f2) returns the arc tangent of $f1/$f2. | |||
| hypot($f1,$f2) returns the length of the hypotenuse of a right-angle triangle with sides of length $f1 and $f2. | |||