List Commands Library for 50g

04042018, 03:56 AM
Post: #324




RE: List Commands Library for 50g
<< <<MAX>>Stream>> and the corresponding MIN work very well except that they fail with lists of a single element, lists of no elements, nonlist variables, and an empty stack. None of these are a particular problem but for a general purpose code, they are insufficient. What does happen is that in the small cases, 0, one, or null elements, one spends much more time testing than in taking extrema. I try to code around this on the HP50g by specialcasing small cases. I'm not sure what the MAX of an empty list should return. The smallest value representable is the "identity" of the MAX function as 0 is for addition and 1 for multiplication.


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