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ANSI Common Lisp  12 Numbers 12.2 Dictionary of Numbers
| 12.2.20 sin, cos, tan |
Function |
- Syntax:
-
sin
radians
 number
cos
radians
number
tan
radians
number
- Arguments and Values:
-
radians - a number given in radians.
number - a number.
- Description:
-
sin, cos, and tan
return the sine, cosine, and tangent, respectively, of radians.
- Examples:
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(sin 0) 0.0
(cos 0.7853982) 0.707107
(tan #c(0 1)) #C(0.0 0.761594)
- Exceptional Situations:
-
Should signal an error of type type-error if radians is not a number.
Might signal arithmetic-error.
- See Also:
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asin,
acos,
atan,
Section 12.1.3.3 Rule of Float Substitutability
- Allegro CL Implementation Details:
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None.
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