sin
radians ⇒ number
cos
radians ⇒ number
tan
radians ⇒ 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)
Should signal an error of type type-error if radians is not a number. Might signal arithmetic-error.
asin; acos; atan, acos, atan, Rule of Float Substitutability