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
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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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 eval() ... but wondered if there were
other packages/modules that would enable me
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
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(pmt,2)
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
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
