Hi all and welcome to another vect tip of the week. So, while doing a homework for a numerical solution of partial differential equations class (or NSoPDE, as I call it), I thought about if I could write the Newton’s method in Matlab so that I could make it faster. But first, let’s do a little recap of what Newton’s method is. Think about your … Continue reading Vect tip of the week : Newton’s method
Hi all. As every week*, we will have a tip for those who want to vectorize their matlab programs, for reasons already stated in earlier posts. In this case, we will look at the vectorization of piecewise functions. Let’s say you have a function like this : which, when plotted, would look like this OK. So, what’s the deal? Well, from the earlier posts on … Continue reading Vect tip of the week : Vectorization of piecewise functions
Hi everyone! For this vect tip of the week, we will see how we can compute weighted sums quickly. Those are sums of the form, where are the numbers that we want to sum and are the weights. Let’s start from simple sums where the weights are all one, . In Matlab, that can be done in many ways. First of all, one might be tempted … Continue reading Vect tip of the week : Summing it up
This is a new series of posts which will run along with the “fourier awesomeness” ones. Before one or two days, I was with a colleague and we were trying to program something in Matlab, when I said something about “vectorizing” the code, to which I got a blank stare as an answer. So, since Matlab is one of the most useful tools in a … Continue reading Vect tip of the Week : Addition of matrices
R196, Hilbert's Hotel 