Here’s a code snippet that created a scatterplot and adds marginal histograms. Here’s the output:
When performing a simulation of a complex system, one often uses a small time step, resulting in large resulting solution arrays. Given Julia’s excellent speed, creating these arrays is often not terribly time consuming, but one does run into trouble … Continue reading
It’s often the case in physics that one deals with a vector (i.e. a 1d array or list), where each entry is also a vector. Here’s some code which takes a list of vectors and converts them into an array … Continue reading
Every experimental measurement in physics includes sources of noise. Of course, we try to minimize the sources of noise, but there is a limit to this ability (thermal noise, for instance, can be minimized, but not eliminated). Consequently, it often … Continue reading
A standard problem in introductory quantum mechanics is to solve for the allowed bound state energies for a particle in a finite potential well. In the attached Jupyter Notebook, I describe this problem, and work out the numerical solutions, and … Continue reading
For many small coding tasks, we simply use the computer to analyze a small amount of data, or simulate a simple system and speed is not really an issue. However, there are certainly many circumstances where speed is important. This … Continue reading
I’m teaching Statistical and Thermal Physics this semester using Gould and Tobochnik’s text of the same name. The text comes with Java programs to run simulations to help students (and me!) gain understanding about how systems with large numbers of … Continue reading
(Updated 11-Jan-2022; fixed broken links and updated notebook) This started out as a way to make sure I understood the numpy array slicing methods, and builds on my previous post about using scipy to fit data. I define a 3 parameter … Continue reading
Here’s a common thing scientists need to do, and it’s easy to accomplish in python. Suppose that you have a data set consisting of temperature vs time data for the cooling of a cup of coffee. We’ll start by importing … Continue reading
I’m working on a text on computational physics whose primary goal is to create something useful for a one semester introductory course that all our physics majors (and now chemistry majors too) will be required to take. I want students … Continue reading