To raise numbers to powers, use common notation for powers and apply Evaluate.
Evaluate
34 = 81 4pt
3-4 =![]()
215 = 32768
=
4pt
0.4
= 1.844674407×10-13 4pt
= 1.529705854
2.5
= 2.081383019
a-1 =![]()
4pt8=
![]()
8.0= 2.0
Note that Evaluate returns a different answer for
and
0.4
. The fraction displayed for
is the exact answer, and the number
displayed for
0.4
is the best 10-digit approximation
to the exact answer.
Apply Evaluate to get
8 =
. Apply Evaluate Numerically to get
= 2.0.