can I use some user(self)defined function in Mathematica symbolic computation?
- To: mathgroup at smc.vnet.net
- Subject: [mg42436] can I use some user(self)defined function in Mathematica symbolic computation?
- From: mizhael at yahoo.com (walala)
- Date: Mon, 7 Jul 2003 03:06:01 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Dear all, I want to find the 2nd Partial derivative of the function: f(x, y)=Integrate[u(t, y), t={-x, x}] where u(x, y) is another function, which is actually general and hence unknown( I can use sin, cos, etc., ... but what I want is the general result for that defferentiation...) I want Mathematica to compute symbolically f_xx and f_yy of f(x, y), is that possible? Can anybody show me ? Thanks a lot, -Walala