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Anonymous Archived
08/31/25(Sun)02:00:49 No.106440175
File: 1754557671568396.png (7 KB, 241x209)
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Anonymous 08/31/25(Sun)02:00:49 No.106440175 Archived
How do CPUs calculate things like sin, cos, square root or log?
>>
Anonymous
08/31/25(Sun)02:04:53 No.106440189
Anonymous 08/31/25(Sun)02:04:53 No.106440189
Polynomial approximations and lookup tables, mostly
>>
Anonymous
08/31/25(Sun)02:04:56 No.106440190
Anonymous 08/31/25(Sun)02:04:56 No.106440190
>>106440175
I'm no export. Iirc that can vary quite a bit, but usually they just calculate a numerical approximation, albeit older cpus might not have this at all.
>>
Anonymous
08/31/25(Sun)02:04:56 No.106440191
Anonymous 08/31/25(Sun)02:04:56 No.106440191
>>106440175
Polynomial approximations and lookup tables.
>>
Anonymous
08/31/25(Sun)02:05:55 No.106440197
Anonymous 08/31/25(Sun)02:05:55 No.106440197
>>106440191
Hah, get sniped by three seconds. Nerd.
>>
Anonymous
08/31/25(Sun)02:05:56 No.106440198
Anonymous 08/31/25(Sun)02:05:56 No.106440198
>>106440189
Ok now that’s spooky. Are you me or am I you?
>>
Anonymous
08/31/25(Sun)02:09:38 No.106440219
Anonymous 08/31/25(Sun)02:09:38 No.106440219
>>106440197
>>106440198
guys I'm scared
>>
Anonymous
08/31/25(Sun)03:36:31 No.106440570
Anonymous 08/31/25(Sun)03:36:31 No.106440570
>>106440189
Bank in the day math kids literally had a trigonometric value tables of result of trig functions to the second decimal. This was important for exams, before the first calculators. Back in the day people had to trace graphs without graphing calculators too. Crazy right!
>>
Anonymous
08/31/25(Sun)03:37:06 No.106440572
Anonymous 08/31/25(Sun)03:37:06 No.106440572
>>106440175
very carefully
>>
Anonymous
08/31/25(Sun)03:45:31 No.106440621
Anonymous 08/31/25(Sun)03:45:31 No.106440621
>>106440175
>log
:-)
>>
Anonymous
08/31/25(Sun)03:48:51 No.106440637
Anonymous 08/31/25(Sun)03:48:51 No.106440637
File: invsqrt.jpg (63 KB, 1559x623)
63 KB
63 KB JPG
>>106440175
>>
Anonymous
08/31/25(Sun)03:50:46 No.106440651
Anonymous 08/31/25(Sun)03:50:46 No.106440651
>>106440570
If you want to know real pain, look into how the first logarithm tables were calculated.
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