Op 03-10-17 om 01:15 schreef Jose Mario Quintana:
((_9&^)d.1)
2.1972245773362196j3.1415926535897931&*@(_9&^)
(I do not know what to make of that answer anyway.)
0j16 ": ^.9
2.1972245773362196
2.1972245773362196j3.1415926535897931 is
ln(9) + i pi
You will notice that the - sign 'disappeared'. That is due to the rule:
ln(-n) -> ln(n)+i pi for n a positive integer.
I get this result from CAS Maxima.
This means that:
2.1972245773362196j3.1415926535897931&*@(_9&^) = - (^.9)*9&^
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