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[Octave-bug-tracker] [bug #49091] MinGW std::acosh less accurate than Li

From: Nicholas Jankowski
Subject: [Octave-bug-tracker] [bug #49091] MinGW std::acosh less accurate than Linux versions
Date: Thu, 4 Aug 2022 15:39:25 -0400 (EDT) 
Follow-up Comment #24, bug #49091 (project octave):


>> format bit
>> 10i
ans = 0000000000000000000000000000000000000000000000000000000000000000 
0100000000100100000000000000000000000000000000000000000000000000i
>> -10i
ans = 1000000000000000000000000000000000000000000000000000000000000000 
1100000000100100000000000000000000000000000000000000000000000000i
>> complex(0,-10)
ans = 0000000000000000000000000000000000000000000000000000000000000000 
1100000000100100000000000000000000000000000000000000000000000000i
>> -complex(0,10)
ans = 1000000000000000000000000000000000000000000000000000000000000000 
1100000000100100000000000000000000000000000000000000000000000000i

>> real(acosh(10i))
ans = 0100000000000111111111000101110001010000011011010010101111011011
>> real(acosh(-10i))
ans = 0100000000000111111111000101110001010000011011010010101111101001
>> real(acosh(complex(0, -10)))
ans = 0100000000000111111111000101110001010000011011010010101111011011
>> real(acosh(-complex(0, 10)))
ans = 0100000000000111111111000101110001010000011011010010101111101001



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