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using factorial in probability question
10-02-2017, 05:48 AM
Post: #15
RE: using factorial in probability question
As explained above, you can't use 365! in Home AT ALL, because it overflows. When Home overflows, it returns the "overflow" value of 9.99999999999E499. That's why 365!/364! returns 365 in CAS but 1 in Home (because 9.9999999999E499/9.9999999999E499 = 1). That's not a bug; it's behaving precisely according to design.

In brief, you can't rely on factorials in Home for any input > 253.119055437 because they ALL return the same overflow value of 9.99999999999E499, just as do 4444^4444 and 7777777^7777777 and 1E456^2 and so on.

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RE: using factorial in probability question - Joe Horn - 10-02-2017 05:48 AM



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