Math

Why Indian Talent Season 2 got it wrong

Why Indian Talent Season 2 got it wrong

So, India’s Got Talent Season 2 got it wrong. The best team did not win. What happened? The rule said judges and votes will get equal (50%) weightage. However its apparent to any Tom, Dick or Harry that the final winners were influenced much more by votes, and to a lesser extent by the judges’ [...]

Number crunching through clustering

Number crunching through clustering

Separating your data into buckets is useful in a lot of problems especially fraud detection. How do you mathematically ‘cluster’ your data? One statistical way is the K-means clustering. Without delving into too much statistics, here is a spreadsheet you can use to do this for your own data. This sheet accepts pairs of two [...]

Magic square

Magic square

Its really easy to make a magic square: one where the horizontal totals and the vertical totals all add up to the same number. For example, here is a 5×5 magic square: How to build one such magic square? You could build a 3×3, or a 7×7 one for example. The rules: 1. Start with [...]

D.R.Kaprekar: Indian Mathematician

D.R.Kaprekar: Indian Mathematician

The readers may recall that I talked about Ramanujan sometime back. Today I introduce to my readers, a much less known Indian Mathematician. Dattaraya Ramchandra Kaprekar, born 1905 worked on the number theory. He had no formal postgraduate training and worked as a schoolteacher in Nasik, India. His claim to fame is the Kaprekar constant [...]

Heart

Heart

I used HSB Grapher to create a graph for the Heart curve (not the more well known cardiod, this is a different curve): x = sin(t)*cos(t)*ln(abs(t)) y = (abs(t)^0.3)*sqrt(cos(t)) Thereafter, I creatively photoshopped it as below: Nice, isn’t it? [Hardeep is out of station, this post was prerecorded]

Srinivasa Ramanujan: Indian mathematician

Srinivasa Ramanujan: Indian mathematician

A leading Indian daily started a series on not so ordinary Indian people just before the Independence day on August 15th. On the d-day, ex Indian President APJ Abdul Kalam wrote a piece and talked about Srinivasa Ramanujan, one of the greatest mathematician of current times, from the land that created zero. He is the [...]