Add improved stack based GUI calculator consisting of powers, root and reciprocations #572

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Heisenberg-Vader wants to merge 1 commit into souravjain540:main from Heisenberg-Vader:Stack-Calc

Heisenberg-Vader commented Oct 4, 2025

Add Stack-Based GUI Calculator with Powers, Roots, and Reciprocations

What it does:

This PR adds a GUI-based calculator using TKinter with the following features:
Stack-based evaluation using infix to postfix conversion (no eval() used).
Standard arithmetic operations: +, -, *, /, %, ^.
Supports square root via a^(1/2) and reciprocal (1/x) via a^(-1).
Handles negative numbers and parentheses correctly.
Simple, clickable TKinter buttons for all operations, numbers, and clear (C).

Example Usage:

5^(-1) evaluates 1/5 = 0.20
16^(1/2) evaluates sqrt(16) = 4.0
(-3+2)^2 evaluates to 1


          Add improved stack based GUI calculator consisting of powers, root an…

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…d reciprocal

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