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Bug in convolution in old Piecewise #12123
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comment:1
The fix is to fix the following
to have This should be fixed quickly, but should also be checked to make sure it really does do the right thing! The code is not really commented enough to show what is going on with all these different mini-convolutions, one has to really think about it. |
comment:4
Here's another report that is almost certainly the same thing.
but probably should be (according to the report)
|
comment:5
In fact,
doesn't even make sense; if the former is true, so is the latter? What on earth is going on here? I think an extra branch snuck in, in addition to the typo. |
comment:6
See also #14801, though I don't know that will help with this. |
comment:9
See #17793 (possible dup) |
comment:10
Replying to @kcrisman:
The two curve parts before addition look like this
|
Stopgaps: todo |
Changed keywords from none to piecewise |
comment:12
Description modified to comment that this seems fixed in the new |
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comment:13
piecewise_old will be removed in #26865 |
Reviewer: Travis Scrimshaw |
comment:15
Presuming these are all correctly reviewed as either duplicate, invalid, or wontfix. |
The old Piecewise (pre #14801; now deprecated) has this bug:
But the middle piece should be 3, not 6, apparently.
See the original report at this ask.sagemath.org question.
Note this is fixed in the new
piecewise
(lowercase p, from #14801).Can close this bug when the old
Piecewise
is removed completely.CC: @wdjoyner @kcrisman @jondo @vbraun @slel @mkoeppe @eviatarbach @rwst
Component: calculus
Keywords: piecewise
Stopgaps: todo
Reviewer: Travis Scrimshaw
Issue created by migration from https://trac.sagemath.org/ticket/12123
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