In my first week of studying industrial design in college one of my professors turned to the class, and while holding and pointing to a hammer, he said "form follows function." That was ...

Nonlinear regression is a form of regression analysis in which data fit to a model is expressed as a mathematical function.

Morris Marden, Logarithmic Derivative of an Entire Function, Proceedings of the American Mathematical Society, Vol. 28, No. 2 (May, 1971), pp. 513-518 ...

First we have proportional parts of all numbers up to 100; then on one page three-place logarithms of numbers and of the six trigonometric functions, natural and logarithmic.