LAST on HP20S

[rprosperi]

(07-07-2016 12:59 PM)jbhp55 Wrote:  Just out of curiosity, can anyone explain to me what the 'LAST' function on the HP20S does (mine is 3014A31950). What the manual says seems not to cover what actually happens, unless I interpret it incorrectly.

It returns the result of the LAST operation that was completed. The example in the manual is poor IMHO (at least poor to point out the purpose of LAST), but it is correct.

The idea is if you have the result of a complex calculation, which is needed in a subsequent calculation, you don't have to re-enter the long complex original one again, you can simply substitute LAST, much as you might use STO & RCL to save that intermediate result for re-use.

Perhaps you've found a situation where you think it does not work? If so, provide the example and your expected result; perhaps you have a misunderstanding or perhaps you've actually found a bug.