There is a function I need. I know how to write it, but I don’t know if it has a standard name (like map, fold, etc.). It takes one argument — a list of something — and returns a list of 2-tuples of equal length. Each tuple contains one item from the list and the [...]

How computationally expensive are various fundamental floating point mathematical operations?  Here's a quick and dirty benchmark, which, although surely quite naive, seems to capture the rough relative cost of a few operations. Motivation This quarter I am taking a course on numerical linear algebra.  Naturally, we are covering topics like the fundamentals of floating point arithmetic, numerical … Continue reading A simple benchmark of various math operations →

How computationally expensive are various fundamental floating point mathematical operations?  Here’s a quick and dirty benchmark, which, although surely quite naive, seems to capture the rough relative cost of a few operations. Motivation This quarter I am taking a course on numerical linear algebra.  Naturally, we are covering topics like the fundamentals of floating point arithmetic, numerical stability, matrix decompositions, and algorithm analysis. In a few of our assignments, we are tasked with [...]

One classic trait you will find throughout enterprise software development is that people are literally treated as individual resources – to be shared, allocated, etc. Of course the management has a perfectly reasonable motivation – how else would you maximize gains or lower the cost of while solving multitude of problems that need solving? There are several underpinning […]

From time to time, I get absorbed by questions for no clear reason. This is one of these times – you have been warned. So here is the question: can I use a logistic map to encode an arbitrary list of 1s and 0s into a single float, and generate back the series by applying the logistic map? I don’t think there is a clear theoretical or practical interest in this question, but for some reason I couldn’t shake it off, and had to do it. Just to clarify a bit what I have in mind, here is the expression for the[...]