Re: Strange Logic in Power of arithmetic

by ExReg (Priest)

on Jan 12, 2016 at 15:59 UTC ( [id://1152575]=note: print w/replies, xml )

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Active State 5.8.8 on Win64

line 1: -8
line 2: -1.#IND
line 3: Illegal division by zero at -e line 1
line 4: -2147483645
[download]

Had to do each one line by line as it failed as a script on line 3 otherwise

version 5.6.1 on Solars

line 1: -8
line 2: NaN
line 3: NaN
line 4: NaN
[download]

If I type them in on Windows as perl -e "print -4**1.5;"..., I get

-8
-4
Illegal division by zero at -e line 1
-2147483645
[download]

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Re^2: Strange Logic in Power of arithmetic by 1nickt (Canon) on Jan 12, 2016 at 16:03 UTC
`Active State 5.8.8 on Win64 line 1: -8 line 2: -1.#IND line 3: Illegal division by zero at -e line 1 line 4: -2147483645` [download] Interesting. Not on darwin: `$ perlbrew exec perl 1152551.pl perl-5.8.8 ========== Power of calculation test line 1: -8 line 2: nan line 3: nan line 4: nan` [download] The way forward always starts with a minimal test.	[reply] [d/l] [select]
Re^3: Strange Logic in Power of arithmetic by ExReg (Priest) on Jan 12, 2016 at 16:18 UTC
Win 7 64 bit, ActiveState 5.8.8 built for MSWin32-x86-multithread Binary build 817	[reply]

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