http://www.mapleprimes.com/posts/43504-Differentiating-With-Respect-To-Structured en-us 2026 Maplesoft, A Division of Waterloo Maple Inc. Maplesoft Document System Wed, 10 Jun 2026 06:58:22 GMT Wed, 10 Jun 2026 06:58:22 GMT The latest comments added to the Post, Differentiating with respect to structured-symbols/expressions http://www.mapleprimes.com/images/mapleprimeswhite.jpg http://www.mapleprimes.com/posts/43504-Differentiating-With-Respect-To-Structured http://www.mapleprimes.com/posts/43504-Differentiating-With-Respect-To-Structured?ref=Feed:MaplePrimes:Differentiating with respect to structured-symbols/expressions:Comments#comment80469 The general way to do this is with the frontend procedure. For this case, one could do <pre> frontend(diff, [sin(x(t)), x(t)], [{specfunc(anything,sin)},{}] ); cos(x(t)) </pre> Some time ago I wrote a small package for generating the Lagrangian equations of motions using this technique; I'll post it on my blog when I get a chance. The latest comments added to the Post, Differentiating with respect to structured-symbols/expressions 80469 Mon, 24 Oct 2005 01:53:15 Z Joe Riel Joe Riel