On Sunday, June 23, 2019, C. Cossé <cco...@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.ur...@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.tur...@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 >>> >>> >> >> > > > -- > > ccosse.github.io >
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