TY - ADVS ED - Open University TI - Approximating functions PY - 1972/// CY - Milton Keynes PB - The Open University Press KW - Functions N1 - This film manipulating functions is part of a branch of mathematics-numerical analysis - a subject of great importance in the computer age. The Way of obtaining approximating function and analyzing the error arising from using an approximation where the original function is quadratic; APD 00162 ER -