math(n)                        Tcl Math Library                        math(n)



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NAME
       math - Tcl Math Library

SYNOPSIS
       package require Tcl  8.2

       package require math  ?1.2.5?

       ::math::cov value value ?value ...?

       ::math::integrate list of xy value pairs

       ::math::fibonacci n

       ::math::max value ?value ...?

       ::math::mean value ?value ...?

       ::math::min value ?value ...?

       ::math::product value ?value ...?

       ::math::random ?value1? ?value2?

       ::math::sigma value value ?value ...?

       ::math::stats value value ?value ...?

       ::math::sum value ?value ...?

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DESCRIPTION
       The math package provides utility math functions.

       Besides a set of basic commands, available via the package math, there
       are more specialised packages:

       o      math::bigfloat - Arbitrary-precision floating-point arithmetic

       o      math::bignum - Arbitrary-precision integer arithmetic

       o      math::calculus::romberg - Robust integration methods for
              functions of one variable, using Romberg integration

       o      math::calculus - Integration of functions, solving ordinary
              differential equations

       o      math::combinatorics - Procedures for various combinatorial
              functions (for instance the Gamma function and "k out of n")

       o      math::complexnumbers - Complex number arithmetic

       o      math::constants - A set of well-known mathematical constants,
              such as Pi, E, and the golden ratio

       o      math::fourier - Discrete Fourier transforms

       o      math::fuzzy - Fuzzy comparisons of floating-point numbers

       o      math::geometry - 2D geometrical computations

       o      math::interpolate - Various interpolation methods

       o      math::linearalgebra - Linear algebra package

       o      math::optimize - Optimization methods

       o      math::polynomials - Polynomial arithmetic (includes families of
              classical polynomials)

       o      math::rationalfunctions - Arithmetic of rational functions

       o      math::roman - Manipulation (including arithmetic) of Roman
              numerals

       o      math::special - Approximations of special functions from
              mathematical physics

       o      math::statistics - Statistical operations and tests

BASIC COMMANDS
       ::math::cov value value ?value ...?
              Return the coefficient of variation expressed as percent of two
              or more numeric values.

       ::math::integrate list of xy value pairs
              Return the area under a "curve" defined by a set of x,y pairs
              and the error bound as a list.

       ::math::fibonacci n
              Return the n'th Fibonacci number.

       ::math::max value ?value ...?
              Return the maximum of one or more numeric values.

       ::math::mean value ?value ...?
              Return the mean, or "average" of one or more numeric values.

       ::math::min value ?value ...?
              Return the minimum of one or more numeric values.

       ::math::product value ?value ...?
              Return the product of one or more numeric values.

       ::math::random ?value1? ?value2?
              Return a random number.  If no arguments are given, the number
              is a floating point value between 0 and 1.  If one argument is
              given, the number is an integer value between 0 and value1.  If
              two arguments are given, the number is an integer value between
              value1 and value2.

       ::math::sigma value value ?value ...?
              Return the population standard deviation of two or more numeric
              values.

       ::math::stats value value ?value ...?
              Return the mean, standard deviation, and coefficient of
              variation (as percent) as a list.

       ::math::sum value ?value ...?
              Return the sum of one or more numeric values.

BUGS, IDEAS, FEEDBACK
       This document, and the package it describes, will undoubtedly contain
       bugs and other problems.  Please report such in the category math of
       the Tcllib SF Trackers
       [http://sourceforge.net/tracker/?group_id=12883].  Please also report
       any ideas for enhancements you may have for either package and/or
       documentation.

KEYWORDS
       math, statistics

CATEGORY
       Mathematics



math                                 1.2.5                             math(n)
