I feel pretty stupid. Looked in the APL2 IBM manual but do not understand how to determine the data type of a variable. Neither the primitives nor the Quads sparked the answer in my brain. It must be something pretty obvious but not to me right now.
So if I have a function FOO X how do I determine if X is character, integer, float, or imaginary? Assuming that it is not a nested array of course. respect… Peter
