Heron of Alexandria · 10 AD

Math,
made tangible.

Drag equations. Spin the unit circle. Move the decimal point. Finally, a math tool that lets you play.

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Algebra Engine

Drag any term across the equals sign and watch it flip. Substitute values, apply index laws, trig identities, log rules, and complex numbers — all by touch.

Algebra engine
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Unit Circle

Spin a point around the circle. Sin and cos update in real time. The most intuitive way to finally feel trigonometry.

Unit circle
×10

Scientific Notation

Drag the decimal point left or right and watch the exponent update live. Scientific notation has never been this physical.

Scientific notation

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"Where there is matter, there is geometry."

— Johannes Kepler, echoing the spirit of Heron

Named for a legend.

Heron of Alexandria — mathematician, engineer, inventor — believed in making abstract ideas physical. He built the first steam engine, the first vending machine, and wrote some of the earliest algorithms known to history.

Read more about Heron →