## Math

### Making scores comparable

How to compare scores rated under different tests, or by different people? Find out, and use the ready spreadsheet to crunch your own numbers.

### Drawing through Iterated Fractal Function

Have a look at the image on the right. What do you think it is? Ok, you got it: it’s a fern. What’s the big deal about that? The big deal is that it has been generated mathematically. Generated mathematically? Yes, mimicking what happens in nature. It also happens to be a ‘fractal’: each part [...]

### Limericks II

Is Algebra fruitless endeavor? It seems they’ve been trying for ever To find x, y, and z And it’s quite clear to me, If they’ve not found them yet then they’ll never Credit: Graham Lester A wonderful bird is the pelican His bill can hold more than his belican He can take in his beak [...]

### The Spirograph

I became a kid again and purchased a Spirograph set. The Spirograph is a mathematical toy, which you can use for drawing nice figures. In the simplest case it exists of a fixed circle, used as a template, and a smaller rolling circle with holes. The result of my experiment is at the end of [...]

### Ravan burning

Yet again India witnessed the effigy-burning of Ravana during the festival of Dussehra. This is how the stage was set initially with Ravana in the middle and Kumbhkaran (Ravana’s brother) and Meghnath (Ravana’s son) on the sides: Some pictures of the fireworks that happened to initiate the ceremony: In short the story goes as below: [...]

### Benford’s law – how to detect fraud through numbers

How to detect problems pertaining to randomness of numbers using Benford’s law. The theory can be used to detect fraud, evasion of rules etc.