- sin Nprocedure
- cos Nprocedure
- tan Nprocedure
- asin Nprocedure
- acos Nprocedure
- atan N1 #!optional N2procedure
- exp Nprocedure
- log Nprocedure
- sqrt Nprocedure
- finite? Nprocedure
- infinite? Nprocedure
- nan? Nprocedure
- expt N1 N2procedure
Operations on inexact numbers, overloaded. atan with two arguments is currently not defined for complex numbers. expt with integer arguments is not defined for negative powers.