Retired electrical Engineer. Science / Technical adviser at one of the 44 Challenger Learning Centers: http://challenger.org/

My book on the fundamentals of Piecewise Polynomial Interpolation is here: https://www.asuswebstorage.com/navigate/s/1331A6694F904A53BE776788B54DB9184

Ham

Interested in too many things.

I responded to a question, but the system says I haven't answered any questions...?

Here: http://math.stackexchange.com/questions/53819/changing-a-bezier-curve-by-dragging-a-point-on-the-curve-itself-rather-than-a-co/952050#952050