complex equation
- To: mathgroup at smc.vnet.net
- Subject: [mg118407] complex equation
- From: Antonio Mezzacapo <ant.mezzacapo at gmail.com>
- Date: Wed, 27 Apr 2011 05:37:49 -0400 (EDT)
Hi everyone,
I have a question. Do you know why Mathematica finds solution to this equation
Solve[Sqrt[1 - z^2] == 2, z]
{{z -> -I Sqrt[3]}, {z -> I Sqrt[3]}}
while if I change sign of the right part it doesn't find solution anymore?
Solve[Sqrt[1 - z^2] == -2, z]
{}
Is this related to the phase specification for complex numbers?
Thank you
Antonio Mezzacapo