Ganesh Swami

I remember how expensive flat screen televisions were a couple of years back. These days it’s hard to find a CRT if you want to buy one.

(via digitimes)

John Backus died on Saturday. He was the father of FORTRAN, Turing Award winner, and one of the names behind the Backus-Naur form (Peter Naur, 2005 Turing Award winner, was the other).

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His Turing Award lecture is also a remarkable read. Titled, “Can programming be liberated from the Von Neumann style,” it laid the groundwork for functional programming…

(via Geomblog)

Another interesting paper came out last week on the preprint archive, “A matrix generalization of Euler identity.” The Euler identity reads,

and is traditionally derived from the Taylor expansion of sine and cosine. In this paper, the author generalizes the Euler identity to matrices. He does this by introducing a complex matrix, known as the imaginary unit matrix

Just like , .

He then proves the Euler identity for these matrices as:

for all real x.