HP48-50G: z=(x,y) converted to r×exp(i×theta)

[Gil]

I think that I saw once how to get
the complex input (x,y) appearing as 'r×exp(i×theta)',
but without using a program such as

\<< -112 SF OBJ\-> DUP2 SQ SWAP SQ + \v/ UNROT SWAP / ATAN 'i' * e SWAP ^ *
\>>

(just by setting up options or flags?).

Thanks for your help.

[Gil]

Solution in
https://www.hpmuseum.org/forum/thread-16...lex+number

Select POLAR & EXACT mode.
Write (4,5} in form '4+5*i'
EXPAND command

But does not work for real a & b like in '4.2+5.1*i'.
To work with the above, the argument has to be entered as '42/10+51/10*i'.