[PYTHON MATRIX-SIG] fft's

[Guido van Rossum]

> >      LDA - INTEGER.
> >                     On entry, LDA specifies the first dimension of the
> >                     array SEQUENCE as declared in the calling (sub)program.
> >                     LDA must be at least max( 1, 2*((N1+2)/2) ).
> >                     Unchanged on exit.
> 
> and this the physical size of the grid. The reason for having both
> is that you might want to dimension some arrays larger than necessary
> to avoid recompilation for every different value of N1/N2.

This is what I thought, except that the formula for LDA's minimum size
seems to imply that it must be at least *1 larger* than N1?  Perhaps
the library module uses this as temp space?

--Guido van Rossum <guido@CNRI.Reston.VA.US>
URL: <http://www.python.org/~guido/>

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