Standard Module rect

<#580#>rect<#580#>

This module contains useful operations on rectangles. A rectangle is defined as in module <#581#>stdwin<#581#>: a pair of points, where a point is a pair of integers. For example, the rectangle

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is a rectangle whose left, top, right and bottom edges are 10, 20, 90 and 80, respectively. Note that the positive vertical axis points down (as in <#584#>stdwin<#584#>).

The module defines the following objects:


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