Still one of my favorite memes.
@fatlimey recently i had the opportunity to work with a non-IEEE-754 floating point format (Siemens S5 KG format) ... it was interesting. Uses exponent + mantissa but with fewer bits and two separate sign bits for sign and mantissa.
@aliceif Ooh, a number language from the before-times.

@fatlimey

[Image description] two panel comic made with screenshots from the show Invincible

[Panel 1] Omni-man and Invincible look at the sky, where is superimposed a graphical representation of how a floating point number is stored in memory on digital systems: a sign, an exponent, and a mantissa.

[Panel 2] Omni-man looks at and speaks to Invincible, the subtitles reading "Look at what they need to mimic a fraction". The rest of the usual quote, "of our power" is blanked out.

@fatlimey If Omni Man memes are a thing now I'm fully on board.
@fatlimey This is so esoteric and so meta, I love it

@fatlimey Excellent!

Also oddly timely, as literally less than 24h ago I was explaining to my partner how IEEE 754 floats work. Is there something I need to know about my privacy?

@epilanthanomai IEEE754 is just daily conversation at my house. Oh the gossip we heard about denormals.
@fatlimey Not being familiar with the original context and the end of the sentence, I didn't get the meta-joke in the meme until I read the alt-text.
@fatlimey @randomgeek At every work place I eventually bring up “What every computer scientist should know about floating-point arithmetic”
https://dl.acm.org/doi/10.1145/103162.103163
What every computer scientist should know about floating-point arithmetic | ACM Computing Surveys

Floating-point arithmetic is considered as esoteric subject by many people. This is rather surprising, because floating-point is ubiquitous in computer systems: Almost every language has a floating-point datatype; computers from PCs to supercomputers ...

ACM Computing Surveys
@brianokken bookmarked! I'm sure some of it I know, but there are always details to be learned.
@brianokken @fatlimey @randomgeek this has been an open tab in my browser for 2 years now.
I swear I will read it some day!
@nightoo @fatlimey @randomgeek Well, it’s two columns, has some math, and is 44 pages, so a better title might be “What Most Computer Scientists Never Learned or Have Forgotten About
Floating-Point Arithmetic”
@fatlimey also, with a countable number of exceptions, we only mimic a fraction of a fraction
@fatlimey IPMI has entered the chat
(L, M, B, K1, K2 are constants that you have to choose so your x fits into a 8-bit integer)
@fatlimey TIL floats are mostly lexicographically sortable due to their memory layout. Caveats exist for negatives and NaNs however.