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Fix Bug 68200 #552

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Tong-Huang
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@Tong-Huang Tong-Huang commented Nov 23, 2023

Hi Team,

Here some cases, calculateRate will return Double.NaN -> [#NUM!],
(https://github.com/apache/poi/blob/trunk/poi/src/main/java/org/apache/poi/ss/formula/functions/Rate.java#L99)

But it can get the right result in Numbers

case1:

RATE(22,30000,20000,-82257625,0,0.1)

Result: Double.NaN

whereas in Numbers I get: 0.35397960290713076

--

case2:

RATE(22,10000,10000,-313562750,0,0.1)

Result: Double.NaN

whereas in Numbers I get: 0.35397960290713076

Following the implementation of numpy-financial, I try to fix the bug.

https://github.com/numpy/numpy-financial/blob/d02edfb65dcdf23bd571c2cded7fcd4a0528c6af/numpy_financial/_financial.py#L582

@xzel23
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xzel23 commented Nov 23, 2023

Link to Apache POI Bug Tracker: https://bz.apache.org/bugzilla/show_bug.cgi?id=68200

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