Message283552
It seems I can write it without the escaped spaces. Is there a problem with this:
*x*:sup:`16` + *x*:sup:`12` + *x*:sup:`5` + 1
I’m happy to add the CRC-32 polynomial if you think it would be useful, although it is a lot longer (fifteen terms instead of four). And this CRC is already easily identified by the CRC-32 name. As well as the polynomial, there are other details that identify a CRC. The bits in CRC-32 are reversed and inverted compared to CRC-CCITT.
>>> hex(crc32(b"\x80", 0xFFFFFFFF) ^ 0xFFFFFFFF)
'0xedb88320'
# 0xEDB88320 is the reversed polynomial representation; the x^0 term corresponds to bit 31
Adler32 is not a CRC, and I don’t think there are multiple versions of the algorithm, so I don’t think it would need any special explanation. |
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Date |
User |
Action |
Args |
2016-12-18 11:47:52 | martin.panter | set | recipients:
+ martin.panter, lemburg, mark.dickinson, eric.smith, stutzbach, docs@python, serhiy.storchaka |
2016-12-18 11:47:52 | martin.panter | set | messageid: <1482061672.93.0.199568145867.issue29004@psf.upfronthosting.co.za> |
2016-12-18 11:47:52 | martin.panter | link | issue29004 messages |
2016-12-18 11:47:52 | martin.panter | create | |
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