yes - this is what I have been doing - created a set of functions to
handle the formula and they all calculate a section of the formula.
Thanks for all the help ;)
Tonino
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Tonino wrote:
thanks all for the info - and yes - speed is not really an issue and no
- it is not an implementation of a complete financial system - but
rather a small subset of a investment portfolio management system
developed by "another company" ...
What I am trying to achieve is to parse a for
thanks all for the info - and yes - speed is not really an issue and no
- it is not an implementation of a complete financial system - but
rather a small subset of a investment portfolio management system
developed by "another company" ...
What I am trying to achieve is to parse a formula(s) and g
Paul McGuire wrote:
>And I wouldn't necessarily agree with beliavsky's assertion that
numarray
>arrays are needed to represent payment dates and amounts, unless you
were
>going to implement a major banking financial system in Python.
Maybe arrays are not "needed", but especially for vectors of flo
Paul McGuire wrote:
> Here's
> a simple loan amortization schedule generator:
>
> def amortizationSchedule( principal, term, rate ):
> pmt = ( principal * rate * ( 1 + rate)**term ) / (( 1 +
rate)**term - 1)
Simpliciter:
pmt = principal * rate / (1 - (1 + rate)**(-term))
> pmt = round(pm
"Tonino" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> Hi,
>
> I have a task of evaluating a complex series (sorta) of mathematical
> expressions and getting an answer ...
>
> I have looked at the numarray (not really suited??) and pythonica (too
> simple??) and even tried using eva
> have a task of evaluating a complex series (sorta) of mathematical
> expressions and getting an answer ...
If we assume that you are looking for functionality and speed is
secondary,
please have a look at the technique in
http://cvs.sourceforge.net/viewcvs.py/xsdb/xsdbXML/xsdbXMLpy/functions.p
There is QuantLib at http://quantlib.org/ . The site says "QuantLib is
written in C++ with a clean object model, and is then exported to
different languages such as Python, Ruby, and Scheme." I have not tried
it -- if it is easily usable from Python please write back to c.l.p.
There is a Python Fi
