Next: , Previous: floor; ffloor; ceiling; fceiling; truncate; ftruncate; round; fround, Up: Numbers

sin, cos, tan (Function)

— Function: sin radians number
— Function: cos radians number
— Function: tan radians number
Arguments and Values:

radians—a number given in radians.

number—a number.


sin, cos, and tan return the sine, cosine, and tangent, respectively, of radians.

 (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 (Rule of Float Substitutability)