Also,
sage: float(e^(-pi/2))
0.20787957635076193
The last digit should be 1, since
i^i = 0.20787957635076190854........
sage does not recognize this identity:
sage: e^(-pi/2) == i^i
e^(-1/2*pi) == I^I
("True" expected as output.)
What's the best way to ask sage for floating point approximations; for
fixed types and unlimited precision types?
-Don
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