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Subject: Re: conditional operator
Date: Tue, 31 Aug 2010 15:46:04 +0000 (UTC)
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I had the same Problem before, solved it a little bit differently. I made the if statement into a seperate function that would return a logical 1 or 0. Then I multiplied the result of my if-function with the result of my function and added the two results. I.e.
let's say
y = 2x  | x>2
y = -2x | x <= 2

cond = @(x) (x>2)
func = @(x) cond(x) * 2x + (1-cond(x)) * -2x

> Hi there fellow MATLABers,
>
> I have recently had the following "problem": I wanted to define a
> function such as the sinc function (sin(x)/x), which for x->0
> approaches 1, but obviously MATLAB throws a division by zero error.
> The solution is simple enough (define the function in an m-file, use
> an if-statement, and test for the "offending" input). Done that,
> works fine.
>
> Here is my question for the community: ideally I would have liked to
> define an anonymous function (sinc = @(x) sin(x)/x;), but that does
> not allow the if-statement. In C, I would have used the conditional
> operator "?", as in ( (x==0)?1:sin(x)/x ).
> I am not aware of MATLAB having such a nice tool; does somebody know
> a simple way to achieve the same thing?
>
> Dietrich
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