cl-num-utils

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This repository is archived. You may find an updated version of these libraries at https://github.com/Lisp-Stat/numerical-utilities

• 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 #+BEGIN_SRC lisp (cl:defpackage #:my-package (:use #:cl #:alexandria #:cl-num-utils) (:shadowing-import-from #:alexandria #:mean #:variance #:median)) #+END_SRC

** Reporting bugs

Bugs are tracked on Github, please [[https://github.com/tpapp/cl-num-utils/issues][open an issue]] if you find one.

** Tasks *** TODO finish histogram code, write tests *** TODO decide whether recursive indexes are practical code is still there, but commented out