A quadratic equation is drawn as a curve on a set of axes. This type of curve is called a parabola and it is symmetrical. To draw the graph we need coordinates. We generate these coordinates by ...

Proceedings of the American Mathematical Society, Vol. 132, No. 12 (Dec., 2004), pp. 3491-3502 (12 pages) We educe an orthonormal system of step functions for the ...