Typo in the number of functions when explaining function sets?

[all-seeing-code]

I think there's a typo in https://github.com/hwayne/learntla-v2/blob/master/docs/core/functions.rst?plain=1#L239

IMO it should be 3^2 = 9 functions when calculating functions mapping 2 tasks with 3 CPUs.

[hwayne]

Thanks for bringing this up! I think the unclear bit is here:

In the prior task example, assignments was always a function in the function set [Tasks -> SUBSET CPUs].

If there are 3 CPUs, then S == SUBSET CPUs would have 2^3 = 8 elements. Then #S^#Tasks = 8^2 = 64.

Would I help if I added this to the tip?

.. tip:: A function set of form [A -> B] will have :math:\#B^{\#A} elements in it. If there were two tasks and three CPUs, that would be Cardinality([Tasks -> SUBSET CPUs]) = :math:(2^3)^2 = 64 possible functions.