PDE & Complex solving problem

• To: mathgroup at smc.vnet.net
• Subject: [mg36462] PDE & Complex solving problem
• From: "Shz Shz Oon" <OONSSHZ at hitachi.com.my>
• Date: Sun, 8 Sep 2002 03:30:37 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

```Dear all,

1.) How to find the General Solution for below's partial differential equation?
(y + u) du/dx + y (du/dy) = x - y
** I use "d" to represent the partial differential symbol.
Can it be solved by function NDSolve in mathematica 4.1? How?

2.) I manage to get the roots of complex equation z^5 = i from
Solve[z^5 == i, z]. It gave me straight the 5 roots in the output.
Is there any way to view the steps in mathematica?

Thanks a lot!
Shz Shz

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