User-defined Functions Applied throughout a Script

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Hi,
I am attempting to write a Matlab script that uses a user-input (hence general) function, f(x), throughout the script. I thought of using he following:
f = @(x) input('Enter f(x): ')
but then when my (iterative) While loop is executed which contains (f(x)), the prompt pops up after every cycle.
I'd be grateful for any help!

Accepted Answer

Walter Roberson
Walter Roberson on 7 Aug 2011
If you have a sufficiently new version of MATLAB,
f = str2func(['@(x)' input('Enter f(x):','s')]);
If your version of MATLAB is a bit older, you need to either inline() or eval() instead of using str2func()

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