Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

Excel's Solver add-in provides a simple way to solve problems involving such formulas. Solver works backwards to find optimal inputs to the objectives and constraints you enter.

Eventually linear programming came to be used in everything from manufacturing to diet planning. George Bernard Dantzig was born in Portland, Ore., on Nov. 8, 1914.