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Taniadi


Last seen: meer dan een jaar ago |  Active since 2012

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Fresh graduate chemical engineers. Likes reading, and have fun =) Professional Interests: chemical process and engineering, programming

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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...

ongeveer 12 jaar ago | 1 answer | 0

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answer

Answered
Nonlinear 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 ...

ongeveer 12 jaar ago | 0

Answered
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...

ongeveer 12 jaar ago | 0

| accepted

Question


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...

meer dan 12 jaar ago | 0 answers | 0

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answers

Question


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...

meer dan 12 jaar ago | 1 answer | 0

1

answer

Answered
problem 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!

meer dan 12 jaar ago | 0

Answered
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...

meer dan 12 jaar ago | 0

Answered
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...

meer dan 12 jaar ago | 0

| accepted

Answered
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...

meer dan 12 jaar ago | 0

Answered
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...

meer dan 12 jaar ago | 0

Answered
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-...

meer dan 12 jaar ago | 0

Question


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...

meer dan 12 jaar ago | 1 answer | 0

1

answer

Answered
fminsearch
i think that one of your errors is writing the function. the function should use different name for output variables.

meer dan 12 jaar ago | 0

Question


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...

meer dan 12 jaar ago | 1 answer | 0

1

answer

Answered
Help 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.

meer dan 12 jaar ago | 0