Conditions in the Intel 8087 floating-point chip's microcode
https://www.righto.com/2025/12/8087-microcode-conditions.html
#HackerNews #Intel8087 #FloatingPoint #Microcode #Technology #History #ComputerArchitecture
Zmij: Faster floating point double-to-string conversion
https://vitaut.net/posts/2025/faster-dtoa/
#HackerNews #Zmij #FloatingPoint #Conversion #FasterDtoa #Programming #TechNews
Pascal
boosted
IEEE754 moment.
IEEE754 moment.
alcinnz
boosted
Why did IEEE specify sqrt(-0) to be -0?! That's … surprising when applied to the interpretation of -0 in the context of complex numbers:
sqrt(complex{-0,+0}) is complex{+0,+0}.
And also pow(-0, 0.5) is +0.
If anything sqrt(-0) should be NaN, but why -0?
Why did IEEE specify sqrt(-0) to be -0?! That's … surprising when applied to the interpretation of -0 in the context of complex numbers:
sqrt(complex{-0,+0}) is complex{+0,+0}.
And also pow(-0, 0.5) is +0.
If anything sqrt(-0) should be NaN, but why -0?