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Re: Numerical Differentiation and Integration of Array Data
From: |
c. |
Subject: |
Re: Numerical Differentiation and Integration of Array Data |
Date: |
Wed, 7 Dec 2011 08:46:39 +0100 |
On 7 Dec 2011, at 04:04, syberraith wrote:
> I was thinking you used the anonymous function to avoid the repeating the
> code of the process function.
>
> I understand what your showing there, although I've tried it a number of
> different ways, and octave keeps giving me undefined errs. So when I put
> this into a script and try to run it:
>
> a = 2;
> b = 3;
> one = @(x) a.*x + b;
> two = @(x) a.^2.*x + b;
> function res = calculate ( f, v )
> res = f(v)
> endfunction
> calculate (one, 5)
> calculate (two, 4)
Your example works without errors for me:
>> a = 2;
>> b = 3;
>> one = @(x) a.*x + b;
>> two = @(x) a.^2.*x + b;
>> function res = calculate ( f, v )
res = f(v)
endfunction
>> calculate (one, 5)
res = 13
ans = 13
>> calculate (two, 4)
res = 19
ans = 19
the double outpt is due to a missing semicolon in the roe "res = f(v)"
> I get this:
>
> error: `a' undefined near line 4 column 12
> error: evaluating binary operator `.*' near line 4, column 13
> error: evaluating binary operator `+' near line 4, column 17
> error: called from `?unknown?'
> error: evaluating assignment expression near line 8, column 8
> error: called from `calculate'
> error: near line 11 of file `/home/fred/octave/test4.m'
> octave:1>
what version of Octave are you using?
on what system?
how did you install it?
c.
- Re: Numerical Differentiation and Integration of Array Data, (continued)
- Re: Numerical Differentiation and Integration of Array Data, syberraith, 2011/12/05
- Re: Numerical Differentiation and Integration of Array Data, c., 2011/12/06
- Re: Numerical Differentiation and Integration of Array Data, syberraith, 2011/12/06
- Re: Numerical Differentiation and Integration of Array Data, syberraith, 2011/12/06
- Re: Numerical Differentiation and Integration of Array Data, syberraith, 2011/12/06
- Re: Numerical Differentiation and Integration of Array Data, c., 2011/12/07
- Re: Numerical Differentiation and Integration of Array Data, Przemek Klosowski, 2011/12/07
- Re: Numerical Differentiation and Integration of Array Data, syberraith, 2011/12/07
- Re: Numerical Differentiation and Integration of Array Data, c., 2011/12/08
- Re: Numerical Differentiation and Integration of Array Data, syberraith, 2011/12/09
- Re: Numerical Differentiation and Integration of Array Data,
c. <=
- Message not available
- Re: Numerical Differentiation and Integration of Array Data, Carlo de Falco, 2011/12/03
- Re: Numerical Differentiation and Integration of Array Data, syberraith, 2011/12/03
- Re: Numerical Differentiation and Integration of Array Data, syberraith, 2011/12/03
- Re: Numerical Differentiation and Integration of Array Data, syberraith, 2011/12/03
- Re: Numerical Differentiation and Integration of Array Data, c., 2011/12/03
Fwd: Re: Numerical Differentiation and Integration of Array Data, Martin Helm, 2011/12/07