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solution of three variables

• To: mathgroup at smc.vnet.net
• Subject: [mg72085] solution of three variables
• From: "Narasimham" <mathma18 at hotmail.com>
• Date: Mon, 11 Dec 2006 04:55:11 -0500 (EST)

Need help for solution of:

x1 = (a Cos[th/2 + k Pi/m] + b) Cos[th]; y1 = (a  Cos[th/2 + k Pi/m] +
b) Sin[th];z1 = a Sin[th/2 + k Pi/m] ;

Solve[{x == x1, y == y1, z == z1 }, {th, k, m}] analytically or

NSolve[{1.6 == x1, 2 == y1, 0.4 == z1}, {th, k, m}] numerically

Thanks in advance,
Narasimham