power(x,y) return Nan for x<0 in spec, so add that for powr.
2ced4f8 add edge case detection for powr in utests
utests/utest_generator.py | 4 ++--
utests/utest_math_gen.py | 5 ++++-
2 files changed, 6 insertions(+), 3 deletions(-)
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