RpnCalcExt is a browser extension developed by mikecalligaro. It is a simple Reverse Polish Notation (RPN) calculator with a large stack. This free extension is available for the Chrome platform and falls under the category of Browsers, specifically Add-ons & Tools.

The main feature of RpnCalcExt is its ability to perform calculations using Reverse Polish Notation. This notation allows users to input mathematical expressions in a different order than the traditional infix notation. The calculator has a large stack, with 8 visible elements and a depth as deep as memory will allow. This ensures that users can perform complex calculations without worrying about limitations.

With RpnCalcExt, users can easily and efficiently perform calculations within their Chrome browser. Whether you're a student, professional, or simply someone who needs a quick and reliable calculator, RpnCalcExt offers a straightforward solution.