95	 Elimination of Special Functions from Differential Equations	 A set of ordinary differential equations which contains mathematical functions requiring the use of subroutines for numerical solution by electronic computer tabular data for numerical solution by hand calculation or function generators when analog methods are applied can sometimes be expanded to an equivalent set of equations which do not contain the functions. This is practical if these functions satisfy sufficiently simple differential equations. Thus among those functions which can be eliminated by this procedure are the trigonometric inverse trigonometric exponential and many other transcendental functions.
