Ask a Question or Help other Players by Answering the Questions on the List Below:

Rate this app:

More details

For Android: 2.3.3 and up	Guide: HP21 Original Scientific Calculator cheats tutorial
When updated: 2020-05-11	Star Rating: 0
Name: HP21 Original Scientific Calculator hack for android	Extension: Apk
Author: AV Media Group	File Name: org.avmg.hp21
Current Version: 1.0	User Rating: Everyone
Downloads: 50-	Version: mod, apk, unlock
System: Android	Type: Education

 

Share HP21 Original Scientific Calculator Cheats Guides Hints And Tutorials - Best Tactics from Users below.

HP21 Original Scientific Calculator Tricks and Codes:

HP21 Original Scientific Calculator Hack Cheats Codes Tips Tricks Advices for New Users and Q&A!

Add your questions or answers

Q: How to get the best score?

Q: What is your favourite trick in this game/app?

Q: What is your strategy?

Watch HP21 Original Scientific Calculator videoreviews, gameplays, videoinstructions, tutorials, guides, tips and tricks recorded by users, pro players and testers.

HP21 Original Scientific Calculator Gameplay, Trailers and Related Videos

 

About the application:

The HP-21 was a scientific calculator produced by Hewlett-Packard between 1975 and 1978.[1] It was designed as a replacement for the HP-35, and was one of a set of three calculators, the others being the HP-22 and HP-25, which were similarly built but aimed at various markets.[2] As with most HP calculators then and now, the HP-21 used RPN entry logic, with a four-level stack. It also had a single user-accessible memory register. As was normal at the time, memory was not preserved on power-down. A physical slider switch toggled between degrees and radians modes, which was an unusual feature. It had a 12-digit LED display, which was less than the 15 digits of the HP-35. Because of these fewer digits the HP-21 (and related calculators such as the HP-25) should display 10-digit floating point numbers but only an 8-digit mantissa with a 2-digit exponent when scientific notation was used. A shift key provided access to functions whose legends were printed on the fronts of the tall trapezoidal keys.

HP21 Original Scientific Calculator Hack - Gallery: