Improved HP 33s Not that bad

The comment by volney68 about the operation of the stack is wrong, and shows a lack of understanding about how rpn operates. Read the manual, and you will understand. By definition, when you ENTER a number it is displayed in the X register and copied into the Y register. The stack lift is then disabled for the next entry.

Recent versions of the HP 33s have fixed the problems with the invisible decimal point and keyboard operation. The quality and design still don't match the HP's of old, but it is now a usable calculator, though with limitations that need improvement. It needs multicharacter variables so that the memory can be better utilized. If you are going to buy one, make sure you get a recent one with the improved display. I have been using HP's for 20 years, and I recommend this calc if you have to buy a new one to replace an older HP that has finally died.

I give it 4 stars because it is RPN.