Apropos

sin, cos, tanFunction

    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)
    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)