Asked by Eman Ahmed Elsayed
on 31 May 2011

I write s function which take two parameter the first is an equation and the second is an integer number and I want to substitute with this number in the equation and return the result.

function result=sub(a,c) %UNTITLED3 Summary of this function goes here % Detailed explanation goes here result=subs(a,c);

end

when I test it on command window I write

>> result=sub(2*x,1)

I get an error

??? Undefined function or variable 'x'.

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Answer by Eman Ahmed Elsayed
on 31 May 2011

I solved my problem

I wrote the function like the following

>> f=@(x) 2*x + 1

and then passed it to the function

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