Victor has some interesting ideas about interfaces, but his campaign to replace simple, powerful, and quick algebraic manipulation with slow, laborious, trial-and-error pushing of numbers around with a mouse is, I think, seriously misguided. Algebra, in addition to giving you an exact solution more quickly, can help you discover general formulas for your problem, and reveal relationships between things, that you can…
Yes I don't understand. Isn't it better to understand how to express your problem and type it into wolfram alpha than do this?