How to turn mode ALGEBRAIC to RPN

  HP49 offer options to the user choose between ALGEBRAIC or RPN mode.

To change HP49 Operating Mode:

Press ( the key [H] )
and it will show a screen like the one in the picture.

So press and choose the option sown.

Yo can also change mode pressing the key
( the kew [W] )

Pressing you can also access flags
and other menus, as shown in picture