Programming exercise (RPL/RPN) - Reciprocal Fibonacci Constant

[Paul Dale]

The 34S [Sigma] command deliberately sums from the last term to the first on the assumption that summations will often be of convergent series and this should generally increase accuracy.

The 34S can also save a step not omitting the LBL 00 and using BACK for the looping (and INC instead of ISG if the latter is used to initialise the stack).

Pauli