levenberg_marquardt fails for me (Ubuntu 14.04, x86-64, gcc 4.8):
Initializing random number generator with seed 1460119722
Repeating each test 10 times
actual = 1
expected = 2
Test testNistMGH10() failed in /usr/local/google/home/benoitjacob/eigen/unsupported/test/levenberg_marquardt.cpp (792)
- Seed: 1460119722
Aborted (core dumped)
*** This bug has been marked as a duplicate of bug 1160 ***
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