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beginner question for .m conversion

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Mohamed Ibrahim
Mohamed Ibrahim on 16 Oct 2015
Closed: MATLAB Answer Bot on 20 Aug 2021
I am beginner at MATLAB, I need to convert small program from fortran code to m file I succeed to do that except one command i don't know how to conver it in m file. The command is: x=x+1 could you help me?

Answers (1)

Geoff Hayes
Geoff Hayes on 16 Oct 2015
Mohamed - the code to increment a local variable by one would be the same in MATLAB. Just do
x = x + 1;
  2 Comments
Mohamed Ibrahim
Mohamed Ibrahim on 16 Oct 2015
i did not mean it i need to to make x(n+1)=x(n) +... each time step in simulation.
Geoff Hayes
Geoff Hayes on 16 Oct 2015
So you have some sort of recurrence relation. If you know how many elements to iterate over, you could do something like
n = 42;
x = zeros(n,1);
x(1) = 2;
for k=2:n
x(k) = x(k-1) + somethingElse;
end
In the above, we size x to be n elements long. We initialize the first element of x to be some random (for this example) number, and then iterate from 2 to the end of x updating each element according to whatever equation you require (this is the somethingElse).

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