cl-num-utils

This library implements simple numerical functions for Common Lisp, including

num=, a comparison operator for floats
simple arithmeric functions, like sum and l2norm
elementwise operations for arrays
intervals
special matrices and shorthand for their input
sample statistics
Chebyshev polynomials
univariate rootfinding

See the sources and the docstring for more details.

All the functionality has corresponding unit tests.

Symbol conflicts with `alexandria`

When you import both cl-num-utils and alexandria, you get symbol conflicts. There are two solutions for this: either import only parts of cl-num-utils (see the packages named in each file), or shadow some symbols, eg

(cl:defpackage #:my-package
  (:use #:cl
        #:alexandria
        #:cl-num-utils)
  (:shadowing-import-from #:alexandria #:mean #:variance #:median))

Reporting bugs

Bugs are tracked on Github, please open an issue if you find one.

Tasks

finish histogram code, write tests

decide whether recursive indexes are practical

code is still there, but commented out