1. A method for generating finite elements of an object defined by a geometric model and predicting a physical quantity of said object, comprising the steps of: a first step of providing an object defined by a geometric model of a predetermined physical medium, wherein said first step includes inputting into a computer system said geometric model, said computer system including an image display screen displaying said geometric model; a second step of transforming, using a symmetric axis transform, the object defined by said geometric model into a plurality of sub-objects, each defined by the symmetric axes of said symmetric axis transform, said geometric model and linkages from branches or terminators of said axes to said geometric model; a third step of transforming each sub-object into finite elements, using said symmetric axes and radius functions of said axes; calculating a finite difference equation for said finite elements; and predicting a physical quantity of a physical phenomenon in said physical medium from said calculated finite difference equation.