EE Solver homepage — light mode
EE Solver homepage — dark mode
Mode selection — Equation Library, Smart Solver, Recently Solved
Equation Library page
Smart Solver page
Recently Solved page — calculation history
Mobile view — homepage

EE Solve — Electrical Engineering Formula Calculator

What inspired me

As a first year Electrical Engineering student, I kept wasting time rearranging formulas by hand during problem sets and labs. One wrong sign and the whole calculation breaks. I wanted a tool that just works — pick your formula, pick what you're solving for, get the answer.

What I learned

I learned how to build a real React app from scratch using vibe coding and AI tools. I had never deployed a web app before this hackathon. In 2 days I went from idea to a live deployed product — that alone changed how I see what's possible.

How I built it

React + Vite for the frontend
Tailwind CSS for the dark theme UI
Each formula dynamically rearranges based on which variable the user wants to solve for
Unit conversions built into every input field
Claude API for the AI explanation feature
Deployed on Vercel

Challenges I faced

The hardest part was making the formulas flexible — the same formula like $V = IR$ needs to work as $I = \frac{V}{R}$ and $R = \frac{V}{I}$ depending on what the user clicks. Building that dynamic solver cleanly took the most work.