# Interactive Mathematics

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### Explore math

Use interactive apps to explore math and get a better understanding of what it all means. Go ahead - play and learn!

There's over 300 easy to understand math lessons.

### What users say...

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### Latest articles

#### Units: Calories and kilograms

How many calories? and the way the kilogram was defined has been in place since 1799. It recently got a makeover. .. more »

#### Spiral around a hyperboloid - the Effekt bridge

#### Infinite series background

Infinite series have played an important role in the development of mathematics, especially calculus. Here's some background to some applets I wrote recently... more »

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