MATLAB: How to define the input to the simulink from workspace as a columns

columns input to simulinkfrom workspaceinput to the simulinksimulink

I want to call signal from workspace to the simulink using "from workspace block" my input file in the workspace contain 5 columns but when I used block from workspace to call it in the simulink the simulink dont understand it as a columns,

so my question is how to upload my columns from workspace to the simulink in such a way the simulink can diagnose it as a columns?

need help plz

Best Answer

See the implementation (attached) of the From Workspace blocks to split the matrix

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MATLAB: Read a Matrix variable in simulink

Use a constant block

MATLAB: Function data into columns

When you do

if isinteger(x)
   ((x)^(n)/factorial(n))
else 
   exp(x)
end

then you compute either ((x)^(n)/factorial(n)) or exp(x) . Because there is no semi-colon after the computation, the default action is taken with the result, and that default action is to display the value. But you are not storing the value -- which is something you need to do because you need to return computed values.

Hint: you probably need to read http://www.mathworks.com/help/matlab/learn_matlab/array-indexing.html

Other notes:

you cannot use a vector of values "^" something. You need to use the vector ".^" the somethng. Not x^n but x.^n . This is because in MATLAB, the "^" operator is matrix exponentiation not element-by-element exponentiation.
Your "while" condition is only going to be executed once. You start with n = 0, and use "while n<1" so it will be true the first time. Then you have n = n + 1 so the 0 will become 1, which is not <1 so the while will not be true the second time. It seems more likely to me that you want to use a "for" loop running up to the maximum order you have defined to expand to (order 6 is pretty common)
isinteger() does not test whether its input has integral value: it test whether the input is one of the integer data types, such as uint8 or int32
you are testing the entire vector x at one time, not individual entries in x
but why are you testing if x is integral anyhow?

Best Answer

Related Solutions

MATLAB: Read a Matrix variable in simulink

MATLAB: Function data into columns

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