Missing solution for exponential equation
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10-01-2018, 11:45 PM
(This post was last modified: 10-01-2018 11:51 PM by rushfan.)
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Missing solution for exponential equation
The peak response of an underdamped second order system is:
Mpt = 1 + e^((-z*pi)/sqrt(1-z^2)) Where Mpt is real. For Mpt = 5, the command: solve( 5 = 1 + e^((-z*pi)/sqrt(1-z^2)) ,z) Returns: Which is only the negative result. The same happens in the Solve app, I only get the negative result. The same code in matlab: clc; syms z; eqn = 5 == 1+ exp((-z*pi)/sqrt(1-z^2)); vpa(solve(eqn,z)) produces: ans = 0.40371275194342068038575605143555 -0.40371275194342068038575605143555 |
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Messages In This Thread |
Missing solution for exponential equation - rushfan - 10-01-2018 11:45 PM
RE: Missing solution for exponential equation - chromos - 10-02-2018, 01:02 AM
RE: Missing solution for exponential equation - Albert Chan - 10-02-2018, 03:02 AM
RE: Missing solution for exponential equation - parisse - 10-02-2018, 05:36 AM
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