Online Course
Massachusetts Institute of Technology

Mit: Open Course Ware: Introduction to Numerical Analysis for Engineering

For Teachers 9th - 10th
College-level electrical engineering course highlighting numerical analysis for engineers. This course introduces students to the formulation, methodology, and techniques for numerical solution of engineering problems. Course features...
Handout
Wolfram Research

Wolfram Math World: Relative Error

For Students 9th - 10th
A brief definition of relative error plus links to pages on absolute error, error propagation, and percentage error.