Issue 1168: complex arithmetic: strange results with "imag" (original) (raw)
Issue1168
Created on 2007-09-16 07:31 by newman, last changed 2022-04-11 14:56 by admin. This issue is now closed.
| Messages (3) | ||
|---|---|---|
| msg55940 - (view) | Author: Nusret BALCI (newman) | Date: 2007-09-16 07:31 |
| "imag" returns incorrect results if invoked on a literal number. Looks like a bug. >>> 1-2j (1-2j) >>> 1-2j.real 1.0 >>> 1-2j.imag -1.0 >>> 1-4j.imag -3.0 >>> (1-4j).imag -4.0 >>> | ||
| msg55941 - (view) | Author: Gabriel Genellina (ggenellina) | Date: 2007-09-16 08:13 |
| Note that there are no complex literals in Python, only imaginary literals. 1-4j is an expression, not a literal. So 1-4j.imag means 1-(4j.imag) = 1-4 = -3 See http://docs.python.org/ref/numbers.html#l2h-16 (I'd close this as not a bug) | ||
| msg55942 - (view) | Author: Georg Brandl (georg.brandl) *  |
Date: 2007-09-16 08:19 |
| Exactly. |
| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:56:26 | admin | set | github: 45509 |
| 2007-09-16 08:19:54 | georg.brandl | set | status: open -> closednosy: + georg.brandlmessages: + resolution: not a bug |
| 2007-09-16 08:13:23 | ggenellina | set | nosy: + ggenellinamessages: + |
| 2007-09-16 07:31:20 | newman | create |