Jack Crenshaw, Author at Embedded.com - Page 4 of 9

Jack Crenshaw

Jack Crenshaw is a systems engineer and the author of Math Toolkit for Real-Time Programming. He holds a PhD in physics from Auburn University. E-mail him at jcrens@earthlink.net.

Why multiply matrices?

Here's a step-by-step analysis of why you multiply matrices. When I took my first college course on matrices, the professor wasn't big on explanation. He…

In the headlights

When deadlines loom large, keep your cool. Skipping steps is the fast road to failure. When I was a freshman in college, my car was…

Who needs matrices?

If you can toss around matrices as you might a Frisbee, you're one of the superheroes. If not, you're on the sidelines, watching. Now that…

Vectors–the last word

Engineers and mathematicians have been encountering the zero vector for as long as vectors themselves have existed. Here's how to handle it when writing a…

The vector class

Here are some additions to the vector class in C++. This month, I continue our discussion of a C++ class suitable for doing math with…

On to objects

Avoid thrashing memory and eating clock cycles when using complex objects, such as vectors and matrices, in your code. Lately we've been looking at software…

SimpleVec wrap

Jack wraps up his discussion of SimpleVec.cpp and demonstrates some useful things you can do with vectors. In the past few columns, I've embarked on…

Motivationally speaking

A vector means many things to many people. Pilot, mathematician, physicist: all of their definitions can help you do your job. In my last column,…