How to enter spreadsheet formula while in RPN mode?

[norlesh]

I have tried with and without single quotes to enter a formula in a spreadsheet cell and continually get the always informative 'Error: Syntax Error' when the Home screen is set to RPN input. While with the input set to algebraic it works without error.

Example: set the contents of A1 to 42, then attempt to set A2 using '=A1' [either with or without the quotes]