Taniadi
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Frage
Specifying du/dx in pde toolbox error
I am trying to solve an elliptic PDE but it has a first order partial derivative w.r.t x, but in PDE specification, it has to be...
fast 13 Jahre vor | 1 Antwort | 0
1
AntwortNonlinear fit to multiple data sets with shared parameters
I think to fit the data set, you can try to use least square method, that is to minimize the error between calculated value and ...
fast 13 Jahre vor | 0
Selecting the correct output.
If you want to the difference, eg. the tenth column and the start price, I think that it can be done with 1. define start pric...
fast 13 Jahre vor | 0
| akzeptiert
Frage
Bvp4c spherical type
Hi all, I want to solve BVP of the _spherical-type_ form : y'' = y' / x^2 + g(y) using bvp4c, and one of the boundary valu...
mehr als 13 Jahre vor | 0 Antworten | 0
0
AntwortenFrage
MuPad and Symbolic Toolbox Error
Hi, i want to ask a question about MuPad. I am beginner using MuPad, I am trying to solve a coupled of ODE as follow using Mu...
mehr als 13 Jahre vor | 1 Antwort | 0
1
Antwortproblem with fmincon to optimize ISE for pid tuning using Bode s ideal trunsfer function
I don't think that the tranfer function can be used as constraint, and one other think, your script cannot be read well!
mehr als 13 Jahre vor | 0
fminsearch
I think that you can try to save your file using the filename "f.m" (equating your function name in function definition". And tr...
mehr als 13 Jahre vor | 0
Transfer function
if you want to try simulate the response of that transfer function with step or ramp function, you can try defining that TF with...
mehr als 13 Jahre vor | 0
| akzeptiert
solve command
Are you trying to solve a system of linear equations? I found difficulties in using solve. If you want to solve linear equations...
mehr als 13 Jahre vor | 0
Is there any function other than Fsolve to solve systems of nonlinear equations ????
I agree with Friedrich, to test, you can see the value of your equations using: [yout, fval ] = fsolve('function',guess). wh...
mehr als 13 Jahre vor | 0
Optimization problem
I can't help you since I don't understand your problem. But after reading your explanation, I think that you have to write a M-...
mehr als 13 Jahre vor | 0
Frage
two systems of coupled elliptic PDE
Hi all, I have a question about solving a system of coupled elliptic PDE, and sadly, it is usually highly nonlinear. What is the...
mehr als 13 Jahre vor | 1 Antwort | 0
1
Antwortfminsearch
i think that one of your errors is writing the function. the function should use different name for output variables.
mehr als 13 Jahre vor | 0
Frage
ode error
Hi all, i want to ask about my M-File. I cant run this code i made function dGdW = PBR(W,Y) global yao Fk0 Q0 T...
mehr als 13 Jahre vor | 1 Antwort | 0
1
AntwortHelp using subfunction to compute zeros of a function
you can use fzero or fsolve to solve the problemm but it is necessary that you change initial guess to get 3 roots.
mehr als 13 Jahre vor | 0
