Author Topic: Solving simultaneous equations  (Read 719 times)

Offline matlabber

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Solving simultaneous equations
« on: March 17, 2010, 02:02:14 AM »
Hi, i am trying to solve a system of equations with three 3 variable and dnt really understand what i am doing wrong.

C=1*10^-6%Capacitance in F
V0=25*10^3%Initial charging voltage in V
Im1=20.4*10^3%first current peak in A
tm1=603*10^-9%time in seconds.
syms R L gamma
%0=(V0*sqrt(C/L)*exp[-(gamma/sqrt(1-(gamma^2)))*asin(sqrt(1-(gamma^2)))])-Im1
%0=(sqrt(L*C)*[(1/sqrt(1-(gamma^2)))*asin(sqrt(1-(gamma^2)))])-tm1
%0=(0.5*R*sqrt(C/L))-gamma
[R,L, gamma] = solve((V0*sqrt(C/L)*exp(-(gamma/sqrt(1-(gamma^2)))*asin(sqrt(1-(gamma^2)))))-Im1, (sqrt(L*C)*[(1/sqrt(1-(gamma^2)))*asin(sqrt(1-(gamma^2)))])-tm1, (0.5*R*sqrt(C/L))-gamma)

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Solving simultaneous equations
« on: March 17, 2010, 02:02:14 AM »