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math(n) 4.2 "Tcl Math Library"

NAME

math - Tcl Math Library

SYNOPSIS

package require Tcl 8.2
package require math ?1.2.2?

::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::prod 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.

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::prod 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.

KEYWORDS

math , statistics