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[Henry <question268152@xxxxxxxxxxxxxxxxxxxxx>]

Question #268152 on Yade changed:
https://answers.launchpad.net/yade/+question/268152

    Status: Answered => Open

Henry is still having a problem:
Many thanks to Dr. Jan.

For the second error, I found there is an resolution method. But my OS
is Ubuntu 15.04, and I can't install libqcgal-dev.

Warning

If you have Ubuntu 14.04 Trusty, you need to install libqcgal-dev from
our external PPA. Otherwise the following error occurs on AMD64
architectures:

terminate called after throwing an instance of 'CGAL::Assertion_exception'
what():  CGAL ERROR: assertion violation!
Expr: -CGAL_IA_MUL(-1.1, 10.1) != CGAL_IA_MUL(1.1, 10.1)
File: /usr/include/CGAL/Interval_nt.h
Line: 209
Explanation: Wrong rounding: did you forget the  -frounding-math  option if you use GCC (or  -fp-model strict  for Intel)?
Aborted

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