1math(n) Tcl Math Library math(n)
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6
8 math - Tcl Math Library
9
11 package require Tcl 8.2
12 package require math ?1.2.4?
14 ::math::cov value value ?value ...?
16 ::math::integrate list of xy value pairs
18 ::math::fibonacci n
20 ::math::max value ?value ...?
22 ::math::mean value ?value ...?
24 ::math::min value ?value ...?
26 ::math::product value ?value ...?
28 ::math::random ?value1? ?value2?
30 ::math::sigma value value ?value ...?
32 ::math::stats value value ?value ...?
34 ::math::sum value ?value ...?
36_________________________________________________________________
38
40 The math package provides utility math functions.
41 Besides a set of basic commands, available via the package math, there
43 are more specialised packages:
44 · math::bigfloat - Arbitrary-precision floating-point arithmetic
46 · math::bignum - Arbitrary-precision integer arithmetic
48 · math::calculus::romberg - Robust integration methods for func‐
50 tions of one variable, using Romberg integration
51 · math::calculus - Integration of functions, solving ordinary dif‐
53 ferential equations
54 · math::combinatorics - Procedures for various combinatorial func‐
56 tions (for instance the Gamma function and "k out of n")
57 · math::complexnumbers - Complex number arithmetic
59 · math::constants - A set of well-known mathematical constants,
61 such as Pi, E, and the golden ratio
62 · math::fourier - Discrete Fourier transforms
64 · math::fuzzy - Fuzzy comparisons of floating-point numbers
66 · math::geometry - 2D geometrical computations
68 · math::interpolate - Various interpolation methods
70 · math::linearalgebra - Linear algebra package
72 · math::optimize - Optimization methods
74 · math::polynomials - Polynomial arithmetic (includes families of
76 classical polynomials)
77 · math::rationalfunctions - Arithmetic of rational functions
79 · math::roman - Manipulation (including arithmetic) of Roman
81 numerals
82 · math::special - Approximations of special functions from mathe‐
84 matical physics
85 · math::statistics - Statistical operations and tests
87
89 ::math::cov value value ?value ...?
90 Return the coefficient of variation expressed as percent of two
91 or more numeric values.
92 ::math::integrate list of xy value pairs
94 Return the area under a "curve" defined by a set of x,y pairs
95 and the error bound as a list.
96 ::math::fibonacci n
98 Return the n'th Fibonacci number.
99 ::math::max value ?value ...?
101 Return the maximum of one or more numeric values.
102 ::math::mean value ?value ...?
104 Return the mean, or "average" of one or more numeric values.
105 ::math::min value ?value ...?
107 Return the minimum of one or more numeric values.
108 ::math::product value ?value ...?
110 Return the product of one or more numeric values.
111 ::math::random ?value1? ?value2?
113 Return a random number. If no arguments are given, the number
114 is a floating point value between 0 and 1. If one argument is
115 given, the number is an integer value between 0 and value1. If
116 two arguments are given, the number is an integer value between
117 value1 and value2.
118 ::math::sigma value value ?value ...?
120 Return the population standard deviation of two or more numeric
121 values.
122 ::math::stats value value ?value ...?
124 Return the mean, standard deviation, and coefficient of varia‐
125 tion (as percent) as a list.
126 ::math::sum value ?value ...?
128 Return the sum of one or more numeric values.
129
131 This document, and the package it describes, will undoubtedly contain
132 bugs and other problems. Please report such in the category math of
133 the Tcllib SF Trackers [http://source‐
134 forge.net/tracker/?group_id=12883]. Please also report any ideas for
135 enhancements you may have for either package and/or documentation.
136
138 math, statistics
139math 1.2.4 math(n)