Solving the system with inexact coefficients
- To: mathgroup at smc.vnet.net
- Subject: [mg99335] Solving the system with inexact coefficients
- From: Desana <incolaster at gmail.com>
- Date: Sun, 3 May 2009 05:20:50 -0400 (EDT)
this is my problem : I've got cca 40 sinusoidal waves ( e.g. 0.118149
Cos[25.1013 t]) and after superposition I get irregurar wave record.
I'm trying to see how many waves I have in certain interval by finding
how many zero crossings there are:
Reduce[Total[Subscript[\[Eta], i]] == 0 && 0 < t < 60, t]
but I couldn't because "Reduce was unable to solve the system with
What's the problem? What does it mean?
Can I find intersection between my wave and x-axis in any other wave?
Perhaps graphically ?
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