Algebra.help is an online resource designed to help people learn algebra. It offers lessons to teach or refresh old skills, calculators that show how to solve problems step-by-step, and interactive worksheets for testing...

This unit consists of two computer programs. The first teaches X,Y plotting; the second is a demonstration of coordinate transformations, matrices, vector equations of lines and perspective and will draw a picture of any...

Created by David Smith for the Connected Curriculum Project, the purpose of this module is to explore the properties of orthogonal vectors and matrices. This is part of a larger collection of material hosted by Duke...