[Numpy-discussion] Definitions of pv, fv, nper, pmt, and rate

David Goldsmith d_l_goldsmith at yahoo.com
Mon Jun 8 23:54:56 EDT 2009

So would we regard a hard-copy of the users guide or reference manual for such a spreadsheet as sufficiently "permanent" to pass muster for use as a reference?


--- On Mon, 6/8/09, Alan G Isaac <aisaac at american.edu> wrote:

> From: Alan G Isaac <aisaac at american.edu>
> Subject: Re: [Numpy-discussion] Definitions of pv, fv, nper, pmt, and rate
> To: "Discussion of Numerical Python" <numpy-discussion at scipy.org>
> Date: Monday, June 8, 2009, 8:40 PM
> On 6/8/2009 11:18 PM David Goldsmith
> apparently wrote:
> > I formally "move" that numpy.financial (or at least
> that 
> > subset of it consisting of functions which are
> commonly 
> > subject to multiple definitions) be moved out of
> numpy.  
> My recollection is that Travis O. added this with the
> explicit intent of seducing users who might otherwise
> turn to spreadsheets for such functionality.  I.e.,
> it was part of an effort to extend the net of the NumPy
> community.
> I am not urging a case one way or another, although I am
> very sympathetic to that reasoning, whether or not I am
> correctly recalling the actual motivation.
> In that light, however, standard spreadsheet definitions
> would be the proper guide.  E.g., the definitions used
> by
> Gnumeric.
> Cheers,
> Alan Isaac
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