OneStone Math is a calculus program incorporating 2D and 3D graphics and a powerful symbolic math engine in an easy to use format. An extensive and expandable feature set provides tools for graphical and numerical analysis of functions, derivatives, integrals and vectors.

OneStone Math builds on the technology showcased in our 3DSurface Viewer (recently published by the Mathematical Association of America), but provides far greater capabilities. 2D and 3D graphs are presented simultaneously, permitting, for example, the viewing of level curves in a traditional 2D format while also seeing their actual spatial relationships in 3D. Contour and grid lines can be superimposed directly on surfaces at user-defined intervals, with up to eight curves/surfaces displayed at once. Concepts such as gradient fields are can be visualized as never before.