HP 33s Scientific Calculator

Reverse Polish Notation

While the hp 33S is capable of both Algebraic and Reverse Polish Notation (RPN) entry, it is the capability of RPN logic that gives this Hewlett Packard Calculator its extraordinary calculation ability. With the automatic 4-register stack, a feature since the beginning of RPN, calculation results are shown as soon as a function button is pressed. It is in this manner that the results of all intermediate calculations may be viewed. Beside being a standard calculator, the HP33S is programmable. It has numerous numeric-memory-registers in which to store data, as well as a fairly sizable program memory, and the numeric-memories are accessible under program control. It has statistical abilities and well as all the normal scientific and engineering capabilities. It also has the ability to work with fractions. In short, it is truly an extraordinary calculator. – Written by Michael H. KeehnRead full review

Verified purchase:  Yes • Condition: pre-owned • Sold by: audi_101

A well designed machine

The hp 33s is a neatly designed scientific calculator that i can program or utilize the equations that i can enter into the equation mode. Yes i like the control this machine gives me. It is a powerful calculating devise with an adequate amount of memory to do many things with it.Read full review

Verified purchase:  Yes • Condition: pre-owned • Sold by: jshoman182

a hp calculator with rpn is the best!

i learned on ah hp 35 ... a lot of years ago, and i love the rpn logic.

Verified purchase:  Yes • Condition: pre-owned • Sold by: trebome_0

HP 33 an excellent buy

In excellent condition - one of few calculators allowed for state land surveyor exams. No equivalent from other manufacturers as a personal opinion, but harder to find one in this pristine shape

Verified purchase:  Yes • Condition: pre-owned • Sold by: randomroady

Good older type calculator

Verified purchase:  Yes • Condition: pre-owned • Sold by: flomart

33s calculator

Thanks got in quick looks in real good shape

Verified purchase:  Yes • Condition: pre-owned • Sold by: rgmjr123

Item was in very good condition.

Verified purchase:  Yes • Condition: pre-owned • Sold by: iVLx6GrHSLS@Del...

As advertised

Works great, everything I expected

Verified purchase:  Yes • Condition: pre-owned • Sold by: erindustries

HP 33s calculator

works good.

Verified purchase:  Yes • Condition: pre-owned • Sold by: rebecca1902

No manual but price was ok