(12C) Check if two numbers is to the power of other

[Albert Chan]

(09-07-2018 08:49 PM)Dieter Wrote:  OK. Gamo and Bob: please repeat this case (5 and 25) once again and SST through the program until
you get to the X≤Y? test in line 17. When this test fails and the next SST continues with the GTO 09 command,
press [–] to see the difference between X and Y. Is it zero or something else?

Just the fact that it failed X≤Y test is enough to deduce X>Y
This is the same as the Microsoft calc bug: sqrt(4) - 2 = -8.1648 ... E-39
Sqrt(X) were using formula Exp(1/2 * ln(X))

For the same reason, android 12C Y^X may be the same way, Exp(X* ln(Y))
Technically, it is not a bug, since 5 ^ 2 = 25.00000000 is indeed 10 digits accurate.

If exact value of Y^X is required (small positive integer X), just build it with multiply (see post 8)