User-defined Functions Applied throughout a Script

2011 8 7
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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!

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Walter Roberson
Walter Roberson 2011-8-7

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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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