@HPC
Ok, you are right. My fault... I checked -(0.05)^0.78 instead of (-0.05)^0.78

The Mervis behavior is correct.

Thank you
Jan

P.S. Maybe it will be great to add this information into documentation. Now there is IN1 ANY_REAL which seems to me that also negative numbers are accepted.

EXPT -0.05^0.78 produces NaN (Exception InvalidOperands)

Hello,

In Mervis 2.4.1 EXPT block produces NaN (Exception InvalidOperands) for IN1 = -0.05 and IN2 = 0.78.

I think that this behavior is not correct -0.05^0.75 = -0.097.

Have a nice day
Jan