Result is Number1 ^ Number2
which should be preferred for portability.
The result is of type float if any of the arguments is a float. When an integer is raised to the power of a negative integer, the result type depends on the value of the global flag prefer_rationals. If it is on, it is a rational, otherwise a float. When the exponent is not an integer, the result is of type float.
In coroutining mode, if Number1 or Number2 are uninstantiated, the call to ^/3 is delayed until these variables are instantiated.
Success:
^(5, 3, 125).
^(-5, 3, -125).
^(5, -2, 0.04).
^(5, 2.2, 34.493244).
^(5.0, 2, 25.0).
^(-5.0, 3, -125.0).
^(0.0, 12.3, 0.0).
^(3.3, 0.0, 1.0).
^(0.0, 0.0, 1.0).
Fail:
^(1, 2, 3).
^(1, 2, 3.0).
^(5, 2, r).
Error:
^(A, 2, 6). (Error 4).
^(-5, 0.5, X). (Error 20).
^(-5.0, 3.1, X). (Error 20).
^(2 + 3, 2, 25). (Error 24).