Determine the tangent of an angle.
This function returns the tangent of an angle. The angle must be in radians. The result is a real number.
Examples
| Code | Returns |
|---|---|
| (tan 0) | 0.00000 |
| (tan (/ pi 4)) | 1.00000 |
| (tan pi) | 0.00000 |
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Programming Overview of LISP (LISt Processing) Language
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