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From Driss Ben Zoubeir <>
Subject Code of XIRR function
Date Thu, 02 Apr 2015 18:28:31 GMT
I am trying to  correct a bug in the XIRR function (it is rather improve
than correct). The idea behind the correction is the following:

1- try to find a solution (XIRR) using the guess value given by the user
or  using the default value
2-if the try with those values does not lead to a solution so begin to scan
for a guess value from -0.99 to +0.99 with 0.01 step until one get a Guess
Value which leads to  Solution.

first to experiments I have written a code but It seems that I have a
problem with the outer while loop. Can someone give me a hint where is the


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