American students have been falling behind in math for decades—with test scores that consistently rank in the bottom 25% globally compared to students in other developed countries—and the ...

This file provides functions and modules that construct shapes from a list of cross sections. In the case of skin() you specify each cross sectional shape yourself, and the number of points can vary.

There are two built-in 2D primitive shapes that OpenSCAD provides: square(), and circle(). You can still use them in the familiar ways that OpenSCAD provides: ...