CLHS: Function SIN, COS, TAN

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Function SIN, COS, TAN

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:

     (sin 0) =>  0.0
     (cos 0.7853982) =>  0.707107
     (tan #c(0 1)) =>  #C(0.0 0.761594)

Side Effects: None.

Affected By: None.

Exceptional Situations:

Should signal an error of type type-error if radians is not a number. Might signal arithmetic-error.

See Also:

asin, acos, atan, Section 12.1.3.3 (Rule of Float Substitutability)

Notes: None.

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