PDEL-A Language for Partial Differential Equations Conventional computer methods available to solve continuous system problems characterized by partial differential equations are very time-consuming and cumbersome. A convenient, easy to learn and to use, high level problem oriented language to solve and study partial differential equation problems has been designed; a practical translator for the language has also been designed, and a working version of it has been constructed for a significant portion of the language. This Partial Differential Equation Language, PDEL, is outlined, and the highlights of the translator are briefly summarized. CACM March, 1970 Cardenas, A. F. Karplus, W. J. problem oriented or digital simulation language, partial differential equations, translator, PL/1, preprocessor PL/1, finite difference algorithms 3.1 3.2 4.22 5.17 CA700307 JB February 13, 1978 4:18 PM 1379 4 2091 1503 4 2091 1542 4 2091 1683 4 2091 1693 4 2091 1693 4 2091 1781 4 2091 1781 4 2091 1781 4 2091 1787 4 2091 1836 4 2091 1836 4 2091 1860 4 2091 1945 4 2091 1945 4 2091 2015 4 2091 2060 4 2091 2060 4 2091 2061 4 2091 2061 4 2091 2082 4 2091 2091 4 2091 2091 4 2091 2091 4 2091 2152 4 2091 2179 4 2091 2179 4 2091 2340 4 2091 2356 4 2091 2546 4 2091 2546 4 2091 2603 4 2091 2698 4 2091 2698 4 2091 2708 4 2091 2708 4 2091 2824 4 2091 2982 4 2091 2986 4 2091 3045 4 2091 3045 4 2091 3093 4 2091 1366 5 2091 1477 5 2091 1491 5 2091 2091 5 2091 2091 5 2091 2091 5 2091