Higher Math

The functions you’ve seen so far are the beginning of the built-in mathematical functions. Lisp also supports logarithms: **LOG**; exponentiation: **EXP** and **EXPT**; the basic trigonometric functions: **SIN**, **COS**, and **TAN**; their inverses: **ASIN**, **ACOS**, and **ATAN**; hyperbolic functions: **SINH**, **COSH**, and **TANH**; and their inverses: **ASINH**, **ACOSH**, and **ATANH**. It also provides functions to get at the individual bits of an integer and to extract the parts of a ratio or a complex number. For a complete list, see any Common Lisp reference.