Common Lisp provides a large variety of operations related to numbers. This section provides an overview of those operations by grouping them into categories that emphasize some of the relationships among them.
Figure 12–1 shows operators relating to arithmetic operations.
| * | 1+ | gcd |
| + | 1- | incf |
| - | conjugate | lcm |
| / | decf |
Figure 12–2 shows defined names relating to exponential, logarithmic, and trigonometric operations.
| abs | cos | signum |
| acos | cosh | sin |
| acosh | exp | sinh |
| asin | expt | sqrt |
| asinh | isqrt | tan |
| atan | log | tanh |
| atanh | phase | |
| cis | pi |
Figure 12–3 shows operators relating to numeric comparison and predication.
| /= | >= | oddp |
| < | evenp | plusp |
| <= | max | zerop |
| = | min | |
| > | minusp |
Figure 12–4 shows defined names relating to numeric type manipulation and coercion.
| ceiling | float-radix | rational |
| complex | float-sign | rationalize |
| decode-float | floor | realpart |
| denominator | fround | rem |
| fceiling | ftruncate | round |
| ffloor | imagpart | scale-float |
| float | integer-decode-float | truncate |
| float-digits | mod | |
| float-precision | numerator |