Compute the value of \(e\) to the power if -1, 0, 1, 2 and 3. Display the results in a nicely formatted manner, with the powers of \(e\) printed with 5 decimal digits (rounded).

Output:

e ** -1 =  0.36788
e **  0 =  1.00000
e **  1 =  2.71828
e **  2 =  7.38906
e **  3 = 20.08554