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Re: Problems translating .m to .oct
From: |
Al Niessner |
Subject: |
Re: Problems translating .m to .oct |
Date: |
Fri, 05 Mar 2004 12:14:18 -0800 |
Thank you. That is what I have been looking for.
On Fri, 2004-03-05 at 11:37, John W. Eaton wrote:
> On 5-Mar-2004, Al Niessner <address@hidden> wrote:
>
> | I am translating a working 'm' file into a compiled version and cannot
> | figure out how to multiply two ColumnVectors element wise. Here is an
> | example of the octave syntax (m file) and reduced C++ code:
> |
> | m-file C++
> | ------ ---
> | a = someMatrix(:,1); ColumnVector a(someMatrix.column(0));
> | b = someMatrix(:,2); ColumnVector b(someMatrix.column(1));
> | c = someMatrix(:,3); ColumnVector c(someMatrix.column(2));
> | ColumnVector d;
> | d = a .* (b + c); d = a * (b + c);
> |
> | I then get the ambiguous operator "*" error where it can find
> | RowVector, ColumnVector -> double
> | ColumnVector, RowVector -> Matrix
> | octave_value, octave_value -> octave_value
> |
> | So, what is the correct C++ syntax for this operation? Should I be using
> | the last and then extracting the column vector from it?
>
> I think you want
>
> ColumnVector d = product (a, b+c);
>
> jwe
--
Al Niessner <address@hidden>
Jet Propulsion Laboratory
All opinions stated above are mine and do not necessarily reflect
those of JPL or NASA.
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