moo@cow[1102]~>perl6
> print("line 1: ", -4**1.5, "\n");
print("line 2: ", (-4)**1.5, "\n");
print("line 3: ", 1/(-4)**1.5, "\n");
print("line 4: ", 3 + (-4)**1.5, "\n");
> line 1: -8
> line 2: NaN
> line 3: NaN
> line 4: NaN