math(n) Tcl Math Library math(n) ______________________________________________________________________________
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 ...?
_________________________________________________________________
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 func-
tions of one variable, using Romberg integration
o math::calculus - Integration of functions, solving ordinary dif-
ferential equations
o math::combinatorics - Procedures for various combinatorial func-
tions (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 mathe-
matical 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 varia-
tion (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://source-
forge.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)
Mac OS X 10.8 - Generated Sun Sep 9 15:09:09 CDT 2012