polar coordinates
- To: mathgroup at smc.vnet.net
- Subject: [mg13397] polar coordinates
- From: "Toshiyuki Meshii" <tm60 at cornell.edu>
- Date: Thu, 23 Jul 1998 03:32:40 -0400
- Sender: owner-wri-mathgroup at wolfram.com
Dear Sirs, Let me know the way to work with patial differentiation on polar coordinates. For examples, when x = r Cos[q] and y = r Sin[q] how can you obtain du[x,y]/dx = Cos[q] * (du[x,y]/dr) - Sin[q] / r * (du[x,y]/dq) by Mathematica? Thank you in advance. Toshiyuki