Community Profile # jack

Active since 2011

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How to write a vector-valued function with vector input from the screen in MATLAB?
I have just found that (3) and (4) can be done by the following code TRUE = 1; FALSE = 0; OK = FALSE; while OK == ...

fast 4 Jahre ago | 0

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Question

How to write a vector-valued function with vector input from the screen in MATLAB?
I am trying to do the following in MATLAB: 1. input *from screen* a small positive integer M (between 1 and 8); 2. in...

fast 4 Jahre ago | 1 answer | 0

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How should I define a missing function in this program?
In the attached program (from a companion website of a numerical analysis book), the file F.m is missing, which is supposed to b...

fast 4 Jahre ago | 0 answers | 0

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Cell array manipulations in MATLAB
I have two cell arrays: |countryname| and |export|. There is only one column in |countryname|, which is the code of the names...

mehr als 5 Jahre ago | 2 answers | 0

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Repeat element of a vector n times without loop.
I would use repelem(X,3,1)

fast 6 Jahre ago | 14

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area plotting in the complex plane
Does anybody know how to "plot" an area in the *complex plane*? For example {z:|f(z)|<1} where f(z)=(1+z)/(1-z). Or more gene...

mehr als 10 Jahre ago | 1 answer | 0

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Does MATLAB R2010b have a symbolic math toolbox?
Does MATLAB R2010b have a symbolic math toolbox? I can find it in the root of the file. But when I search it in the start menu i...

mehr als 10 Jahre ago | 2 answers | 0

### 2

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set the state for the random number generator
For the function "randn", one can use randn('state',100); to set the state. How about the generator "*poissrnd*"?

mehr als 10 Jahre ago | 1 answer | 0

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symbolic calculation
The key point is that the MATLAB one uses needs to have the symbolic toolbox. Otherwise, one can not go further for the symbolic...

mehr als 10 Jahre ago | 0

Question

symbolic calculation
Why do I get >> a = sqrt(sym(2)) a = 1/2 2 inst...

mehr als 10 Jahre ago | 2 answers | 0