Category Archives: mathematica

String resonance

My friend Will posted a cool animation today: GIF of the forced fixed string envelope showing nodes/antinodes for different k values. Driver on left. http://t.co/nCZh93arYa — Will Slaton (@wslaton) October 4, 2014 It got me thinking about the lab we … Continue reading

Posted in mathematica, physics, twitter | 6 Comments

Finding normal modes

Normal mode analysis is a typical topic in junior/senior mechanics courses. Ours suffers from a lack of linear algebra as a prerequisite so I’ve worked to find ways to engage students with this material without that background. My typical approach … Continue reading

Posted in mathematica, physics, teaching | 8 Comments

Finding grains

My colleague asked me to help him out with this image: He needs to know the grain size distribution, and they’ve been having trouble automating this. He knew I’d been doing some work with Mathematica’s image analysis capabilities so he … Continue reading

Posted in mathematica, physics | 4 Comments

Object tracking in Mathematica

I’ve been playing with ImageFeatureTrack in Mathematica over the last few days. My interest is in helping me and my students track the beads on a swinging beaded chain (something we worked on quite a bit last summer). I just … Continue reading

Posted in mathematica, physics | 5 Comments

Visualizing eigenvectors

When I was in undergrad, I dutifully did all my linear algebra homework, not really understanding why. I figured, “if they want me to find a vector or two for a given matrix that satisfies M.v=lambda v , fine, I’ll do it.” … Continue reading

Posted in math, mathematica, physics, teaching, Uncategorized | 5 Comments

Fourier analysis for non-scientists

Yesterday I went on twitter to try to get some help on teaching Fourier analysis for my sound and music class: teaching fourier theory to non-sci-Ss. Goal: that it's possible (to find freqs). not-a-goal: teach slickest way to do the … Continue reading

Posted in math, mathematica, physics, teaching | 5 Comments

Clock hands symmetry

A long time ago, Dan Meyer took to the twitter-sphere with a question: "When do the three clock hands form three 120-degree angles?" Fun problem from Bowen Kerins. http://t.co/afEAGP8 — Dan Meyer (@ddmeyer) June 30, 2011 Note, it seems that … Continue reading

Posted in fun, math, mathematica | 4 Comments