[Octave-bug-tracker] [bug #49832] power operator produces different results between Matlab & Octave

[Rik]

Follow-up Comment #9, bug #49832 (project octave):

macOS backend library may be slightly different.

I went through the results of the power operator more carefully and I see
these differences (M = Matlab, O = Octave).


1.^NaN = (NaN for M, 1 for O)
0.^-Inf = (Inf for M, NaN for O sometimes when done in matrix operations, but
not for individual operation or scalar-by-matrix)
0.^0 = (1 for M, NaN for O sometimes when done in matrix operations, but not
for individual operation or scalar-by-matrix)
0.^Inf = (0 for M, NaN for O sometimes when done in matrix operations, but not
for individual operation or scalar-by-matrix)
(-eps(0)).^(-Inf) = (Inf for M, NaN for O)
(-eps(0)).^(-realmax) = (Inf for M, NaN for O)
(-eps(0)).^(realmax) = (0 for M, NaN for O)
(-eps(0)).^(Inf) = (0 for M, NaN for O)
(-realmin).^(-Inf) = (Inf for M, NaN for O)
(-realmin).^(-realmax) = (Inf for M, NaN for O)
(-realmin).^(realmax) = (0 for M, NaN for O)
(-realmin).^(Inf) = (0 for M, NaN for O)
-1.^(-realmax) = (1 for M, NaN for O)
-1.^(realmax) = (1 for M, NaN for O)
(-realmax).^realmax = (Inf for M, NaN for O)
(-realmax).^Inf = (Inf for M, NaN for O)
(-Inf) .^ (-Inf) = (0 for M, NaN for O)
(-Inf) .^ (-realmax) = (0 for M, NaN for O)
(-Inf).^0 = (1 for M, NaN for O, but not for individual operator)
(-Inf).^realmax = (Inf for M, NaN for O)
(-Inf).^Inf = (Inf for M, Nan for O)



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