*May 16, 2017*

A quick but ill-conditioned way to compute a Lagrange polynomial interpolation…

*Dec 11, 2014*

Any image can be reconstructed using just a superposition of plane waves of different spatial frequencies. This is a numerical experiment using a NumPy script that reconstructs an image one frequency component at a time.

*Mar 26, 2012*

A derivation of the mathematical expression for the throughput of an aloha network using the exponential and Poisson random distributions

Tags: math

*Mar 26, 2012*

This is based on my dissatisfaction with the messed up way time and work problems are handled in quantitative aptitude examination guides. They take a simple idea, threaten you with time constraints and leave you feeling broken and guilty because you couldn't solve them quickly enough.

Tags: math

*Mar 26, 2012*

The process of convolution works on the twin concepts of linearity and shift invariance. Here is an animated explanation of the concept.

*Mar 26, 2012*

"Convolution in the time domain is multiplication in the frequency domain" is an oft-quoted statement. But the exact relation between the two is seldom stressed adequately. Mathematically, convolution and polynomial multiplication are one and the same process, as I shall explain shortly.

*Mar 26, 2012*

Modular exponentiation is essentially a technique used to calculate c=b^e mod m mostly used in computer programming. Let's say you want to calculate 97^59 mod 8. 97^59 is far too big a value to be calculated and housed in the typical variable. And that's why we need this "special technique".

Tags: math

*Mar 18, 2012*

This piece of code is a Matlab/GNU Octave function to perform Lagrange interpolation.

*Mar 17, 2012*

This "matlet" is work we did for an assignment we had in the third semester on Electromagnetic Fields. The problem statement was to create an applet which could plot surfaces in the spherical coordinate system.