Author Archives: Jim Masterson

The Lorenz Attractor

Posted on October 21, 2020 by Jim Masterson

The Lorenz Attractor This is my effort to display Edward Lorenz’s equations. First I would like to thank a couple of sources. One is the matrix manipulation code designed by Sun Microsystems (now Oracle Corporation). The version I used here … Continue reading →

Posted in Math, Science, Software | Leave a comment

Writing an LR(1) Parser Generator

Posted on July 14, 2016 by Jim Masterson

About twenty-five years ago, I wrote an LALR(1) compiler-compiler loosely based on the syntax in “Principles of Compiler Design” by Aho and Ullman.  I wrote that program using Kernighan and Ritchie’s C language.  A few years later, I tried the … Continue reading →

Posted in Software | Comments Off on Writing an LR(1) Parser Generator

Comparing Model Results with Data

Posted on June 30, 2012 by Jim Masterson

One of the interesting things about the Kiehl and Trenberth 1997 paper is that it’s possible to make a simple climate model based on it.  This diagram (Figure 1) repeats the paper’s classic (and somewhat overused) Fig. 7, but here … Continue reading →

Posted in Science | 4 Comments

Death Valley Temperature Changes

Posted on February 12, 2010 by Jim Masterson

Years ago (before 2003 and after 1998), I became interested in desert temperatures (specifically Death Valley). One of the predictions of greenhouse theory is that dry regions, like deserts and polar regions, will show the effects of CO2 warming more … Continue reading →

Posted in Science, Science Fiction | Comments Off on Death Valley Temperature Changes

US Housing Starts

Posted on September 17, 2009 by Jim Masterson
Posted in Economics | Comments Off on US Housing Starts

Civilian Work Force

Posted on September 16, 2009 by Jim Masterson

The plot shown here uses data from the U.S. Department of Labor Statistics.  The light blue dots are total civilian labor force, the light green dots are total civilian employed, and the pink dots are the total civilian unemployment rate.  … Continue reading →

Posted in Economics | Comments Off on Civilian Work Force

Hello world!

Posted on August 27, 2009 by Jim Masterson

Welcome to WordPress.com. This is your first post. Edit or delete it and start blogging!

Posted in Uncategorized | Comments Off on Hello world!