Problem while plotting the function cosh

Bug #69958 reported by David Boucher
4
Affects Status Importance Assigned to Milestone
gNumExp
Fix Committed
High
Unassigned

Bug Description

If I attempt to draw the cosh function with the default window (x=-10..10 ; y=-10..10), the curve isn't drawn. But if I change the scale to (x=-10..10 ; y=-10..1000), it works.

The adaptivesample function in numexp-core seems to give something correct.

Don't have time to search more...

Some similar problems with function sinh.

Gustavo Carneiro (gjc)
Changed in gnumexp:
importance: Undecided → High
status: Unconfirmed → Confirmed
Revision history for this message
Gustavo Carneiro (gjc) wrote :

I think this is a bug in GooCanvas :|

Revision history for this message
Gustavo Carneiro (gjc) wrote :

bounds: x=[0.000000..835.000015]; y=[-32768.000000..32767.981827]

It is probably related to this bug:

    https://bugs.freedesktop.org/show_bug.cgi?id=7965

Revision history for this message
Gustavo Carneiro (gjc) wrote :

I was able to workaround the goocanvas or cairo bug. Should be fixed now in my bzr tree.

Gustavo Carneiro (gjc)
Changed in gnumexp:
status: Confirmed → Fix Committed
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