On Sunday, June 23, 2019, C. Cossé <ccosse@gmail.com> wrote:
I'll bet every one of those graphing calcs has also been replicated as a phone app
That's cool stuff there! (yours)
Yeah, that's really cool. Was the MoCap (motion capture) done at the University of Nebraska Omaha (UNO)? They've a new Biomechanics facility next to the soccer field over there. There are a bunch of cool videos demoing simulated agents learning to walk with evolutionary algorithms (mutation, crossover, cost function) https://github.com/openai/mujoco-py/blob/master/README.md#usage-examples https://youtube.com/results?search_query=openai+learning+to+walk By comparison, my old offline graphing calculator is a frustrating piece of work with no QWERTY keyboard. In building a table out of a rolling cart, 2x6's, a melamine sheet, and some brackets, I had need for rigid body dynamics; to determine how much force would cause the table to fall over. After not finding any existing open source software with actual calculations and a few q&a questions with some equations and parameters, I considered trying to add support to FreeCAD (with cadquery and Jupyter Notebook) for rollover risk. It was a good review of counterbalancing forces: https://en.wikipedia.org/wiki/Rigid_body_dynamics
On Sun, Jun 23, 2019 at 12:30 PM kirby urner <kirby.urner@gmail.com> wrote:
Another modeling activity that's fun is starting with a giant spreadsheet (maybe a pandas DataFrame) wherein the columns are xyz coordinates of ballerina body sensors. As we know, the movie industry uses these sensors routinely, to bring an actor into a virtual reality (e.g. Gollum in Lord of the Rings).
We had an outfit in Nebraska do the recordings and I translated the sensor data into stick figure renderings, kind of eerie.
Pipeline: sensor data (excel) --> python --> povray --> frame-joiner --> movie
https://youtu.be/38iz0-dopSg https://youtu.be/3WehC6LxZe8
This requires knowing enough scene description language to have Python write out coherent scripts, frame after frame, to the rendering engine (free open source povray).
Lots of coordinate system practice, with movie-making an end result.
I'd like students to have access to Civilization type games but with full planets rendered as hexapents. No need to code it from scratch unless they pay you. At some point, you need to say "hey, even adults aren't working this hard for nothing".
Calendar time including timezones and daylight savings definitely core curriculum, no question, glad we have datetime tools.
Again, back to the end of the calculator era, they suck at calendar datetime, and besides, the API of a bazzillion little buttons sucks.
Kirby
https://mybizmo.blogspot.com/2006/04/more-first-person-physics.html (First Person Physics, University of Nebraska) https://youtu.be/sguOvRlHjn0 (more hypertoons)
On Sun, Jun 23, 2019 at 12:04 PM Wes Turner <wes.turner@gmail.com> wrote:
Another plotting exercise: MathClock / MathCircle
With X, Y coordinates, - Draw a circle - Draw a circle around the origin - Label degrees (360; Babylonian base 12) - Label fractional radians - Label 12 hours - Label the 60 minutes - Draw clock hands
And then do the same with radial coordinates
... Number representations: change of base; Columns in e.g. Pandas; Trigonometry: Sin, Cos
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ccosse.github.io