Sharp EL-506H

Open parenthesis/polar coordinate -* rectangular coordinate conversion
QJ key
I ( \: Used to open parenthesis.
Example: Refer to page 26.
i2r>dF| i*'3Cy|; Converts polar coordinate Into rectangular coordinate.
Example: Refer to page 20.
Exchange/statistical calculation mode key
I ♦ j: Used to exchange the number being displayed with the number stored In
the working register. (* ** y)
|2t>dF||STAf|: Statistical program will be activated.
When the calculator is set to the statistical calculation mode through this
key, the symbol " wtfUi " appears, and at the same time the entire machine
is cleared. Meanwhile, in the statistical calculation mode the | ) | , Ix-mI ,
|RM| and iM-fj keys work as the 1 71 1 , ! x \ . 1 S I and |data| keys, respec-
tively. And pushing these keys immediately after the j2^?)key they work
as the Irxl and keys.