Solve it, see every step
Linear, quadratic and 2–3 equation systems. Exact fractions, no signup.
Try
0
History
Nothing yet. Your calculations and solves are saved on this device only.
Linear, quadratic and 2–3 equation systems. Exact fractions, no signup.
Nothing yet. Your calculations and solves are saved on this device only.
A calculator that also solves equations and shows the steps.
A one-off £3.00 payment, no subscription: unlimited step-by-step solves. The calculator, history and zoom are free. You get 2 free solves to try it first.
Your equations, history and settings stay in this browser. Nothing you type is sent anywhere. The page also loads a small script from our payments helper, which keeps an anonymous page-view and free-use count and checks a purchase; it sends no equations. Payment goes through Stripe. THATCHED keeps an anonymous count of page views and free uses, and anonymous error reports. Payment is handled by Stripe when you choose to pay.
Any current Chrome, Safari, Firefox or Edge, on phone or computer. After the first load it works offline.
Digital goods: access starts straight away, so the 14-day cancellation right ends once you start using it. If something is broken, email business@thatched.ai. Already paid on another device? Use Restore.
Privacy: nothing you type leaves your device. Works offline once loaded. Everything runs on your device. Uses THATCHED keeps an anonymous count of page views and free uses, and anonymous error reports. Payment is handled by Stripe when you choose to pay.math.js (Apache-2.0).