Hacker News new | past | comments | ask | show | jobs | submit
unanimous | on: SpeedCrunch 1.1
This is nice to see, and it looks like this release (and maybe some earlier ones?) includes a small order of operations bug fix that hadn't been released for a long time. 1/2(-9.8) now equals -4.9 rather than -0.05102040816326530612. I like how the expression also renders with a multiplication symbol to clarify: 1 / 2 × (−9.8)
Jaxkr | parent | next
This is such an ambiguous formula. It reminds me of those order-of-operations social media engagement baits.
dataflow | parent | next
> 1/2(-9.8) now equals -4.9 rather than -0.05102040816326530612

That should really be an error.

simsla | root | parent | next
Order of operations is clear. Division and multiplication have the same order and are evaluated left to right.

-4.9 is unequivocally correct.

dataflow | root | parent
Yes, thank you, I passed elementary school. Mathematical correctness is not the sole criterion that matters in this world.
3eb7988a1663 | root | parent | next
Especially for a deterministic tool like this. Do what I say, not what I mean. I want no helpful cleverness that resulted in this bug in the first place.
| root | parent | next
{"deleted":true,"id":50232812,"parent":50226195,"time":1792943180,"type":"comment"}
| root | parent | next
{"deleted":true,"id":50232819,"parent":50226195,"time":1792943217,"type":"comment"}