Jack Crenshaw, Author at Embedded.com

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.

The normal distribution

Call it Hell, Call it Heaven, it's a probable twelve to seven that the guy's only doing it for some doll — Stubby Kaye and…

Classic Crenshaw: All about vectors

Understanding the intimate relationship between vectors and reality means means understanding vectors, their properties, and how to manipulate them. Sharp-eyed readers may have noticed that…

The Programmer’s Toolbox

In the February, 1992 issue of Embedded Systems Programming, a new column,  Programmer's Toolbox, was introduced. The name was not chosen at random: The intent…

Calculus by the Numbers

If you've studied calculus at all, you learned early on a sad but true fact of life: There are  many more calculus problems that can't…

How I got embedded: a special connection

Take a trip through the life's work of one engineer who was involved in embedded systems from Day 1 (courtesy of Rambling Jack). Click for…

Quiet down out there!

Understand how to cut down on the noise in your system, using the math behind the Kalman filter. If you know something about the dynamics…

Estimation interruptus

You need math to estimate a curve. Here's part two in Jack's series on state estimation. Jack Crenshaw's Estimation SeriesPart 1: Why all the math?Part…

The changing face of Mathcad

Was someone at PTC listening to Jack when they created Mathcad Prime 1.0? Editor's note: Due to unforeseeable circumstances (including a sick computer), Jack Crenshaw…

Can you give me an estimate?

About 18 months ago, I wrote a column on the least squares fit (“Why all the math,” www.embedded.com/4027019) where I emphasized the technique to fit…

Fly me to the Moon

Fly me to the moon Let me play among the stars Let me see what spring is like On a Jupiter and Mars. –Bart Howard, 1954…