The story behind the name

Heron of Alexandria

Engineer. Mathematician. Inventor. The man who believed abstract ideas should be made physical — around 10 AD.

Heron of Alexandria was one of the most inventive minds of the ancient world. He wrote treatises on geometry, mechanics, and optics, and built machines that wouldn't be reinvented for over a thousand years.

He designed the aeolipile — the first recorded steam engine. He invented an early vending machine that dispensed holy water when a coin was inserted. He described algorithms for computing square roots that form the basis of methods still used in computing today. His formula for calculating the area of a triangle from its side lengths — Heron's Formula — is still taught in high schools worldwide.

What made Heron remarkable wasn't just his intellect. It was his conviction that ideas should be made tangible. He didn't just describe geometry — he built machines that demonstrated it. We named this app in his honour.

Why we built Heron

The best way to understand something is to play with it. Not to watch someone else solve it on a board, not to copy steps from a textbook — but to grab it, move it, break it, and put it back together.

Heron gives you three tools that make abstract mathematics physical. Drag an equation term across the equals sign. Spin a point around the unit circle. Slide a decimal point and watch the exponent update in real time. Math stops being symbols on a page and starts being something you can feel.

How to use the app

01

Algebra Engine

Type any equation into the input field. Each term becomes a draggable tile. Drag a term across the equals sign to move it to the other side — the sign flips automatically (+ becomes −, × becomes ÷). Tap a variable to substitute a value. Use the toolbar to apply index laws, trig identities, log rules, or complex number operations.

02

Unit Circle

Drag the point around the circumference of the circle. The sin and cos lines update in real time as you move. The exact values are displayed as you go. Try moving through the four quadrants and watch how the signs change — it's the fastest way to understand why sin is negative in the third quadrant.

03

Scientific Notation

Enter any number. Drag the decimal point left or right across the digits. The scientific notation form updates live — the coefficient and the exponent both change as you drag. It makes the relationship between the decimal point's position and the power of ten completely intuitive.

Get in touch

Have feedback, a bug report, or a feature idea? We'd love to hear from you.

[email protected]