Trapezoid

trapezoid

Description

Implements the trapezoid rule. The first three arguments are required.

Syntax

$area = trapezoid($rf_func, $start, $end, %options);

Params

$rf_func refers to a subroutine of one variable defining the function.
$start is the left hand endpoint of the integral.
$end is the right hand endpoint of the integral.

Options

Option key	Option value	Default
steps, intervals	The number of intervals in the trapezoid approximation.	30

Returns

A number representing the definite integral

Examples

$area = trapezoid(sub { my $x=shift; $x**2;}, 0, 1, steps =>100); # overkill evaluation of x^2 on the interval from 0 to 1.