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Calcstra is a simple RPN (Reverse Polish Notation) calculator. The  Wikipedia entry on RPN is an excellent place to learn how, and why, RPN works.

Sorry for the delay - I was working on another app. I'll fix angle mode state retention soon, wanted to get a quick pass out.

1.1.0 - quick chop at radians (hit menu)

iPhone related for Calcstra

Calcstra was developed for Android by Robert Bushman

Package name : com.traxel.calcstra

System permissions : 3 Click here to show/hide list
  • android.permission.WRITE_EXTERNAL_STORAGE
  • android.permission.READ_PHONE_STATE
  • android.permission.READ_EXTERNAL_STORAGE

I am the developer of this Application !

Discussion(s) about Calcstra in our forum

Comments and Ratings for Calcstra

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by A Google User the 4/22/2013

Calc Store, Rcl ?

by A Google User the 4/12/2013

short stack, not Tablet ready Stock Limit too Short (8). Buttons too big on 10"tablet.

by A Google User the 4/6/2013


by A Google User the 4/12/2012

Simple RPN Calc that works. Good size buttons and stack display.

by A Google User the 2/17/2012

Jewbaby It's good I like.

by A Google User the 2/16/2012

Not bad Bottom row of keys is almost off screen but still usable if you guess them and of all rpn calcs I tried this is still better . android freeware is plentifully but of poor quality

by A Google User the 12/3/2011

Screen breaks (800*480, Gingerbread)

by A Google User the 7/23/2011

Fantastic rpm. Very fast and perfect for a mobile app.

by A Google User the 3/8/2011

Move to SD asap plz

by A Google User the 11/4/2010

Should have a much longer stack than just what's viable. Multiple "Enters" should duplicate the bottom stack entry. Otherwise it's a great start.

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Calcstra for Android was rated by Android Market Users on : 4.0/5


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