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  • Nov 09 2020 13:10
    labarba closed #217
  • Nov 09 2020 12:27
    Wajiha11 commented #217
  • Nov 09 2020 12:27
    Wajiha11 opened #217
  • Dec 22 2019 20:45
    mesnardo edited #216
  • Dec 22 2019 20:44
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  • Dec 22 2019 20:44
    mesnardo closed #215
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    mesnardo closed #213
  • Dec 22 2019 20:44

    mesnardo on master

    Minor changes * [Module 2, Les… (compare)

  • Dec 04 2019 01:43
    mesnardo labeled #216
  • Dec 04 2019 01:43
    mesnardo opened #216
  • Mar 12 2019 20:30
    nightwolfer1 commented #174
  • Mar 12 2019 19:32
    labarba commented #174
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    nightwolfer1 commented #174
  • Feb 21 2019 13:27
    bknaepen synchronize #167
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    Chao8219 edited #214
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    Chao8219 synchronize #214
  • Nov 27 2018 17:01
    mesnardo opened #215
  • Oct 03 2018 15:22
    Chao8219 opened #214
  • Oct 03 2018 00:03
    Chao8219 opened #213
  • Aug 30 2018 20:53

    labarba on format

    (compare)

FredInChina
@ReblochonMasque
BTW, all the posts I made on the forum last night (8 hours ago are gone...
it doesn't work as I thought after all.
Lorena A. Barba
@labarba
Wow. Discussion page is totally buggy.
Nothing to do for the moment. Devs said they'd build a new instance of Open edX from scratch an migrate the course
The edX guys push to their repo willy-nilly, I'm afraid.
FredInChina
@ReblochonMasque
That doesn't sound too good...
I am sorry to hear all the problems you have to deal with
on top of a first offering of the course (
Lorena A. Barba
@labarba
No. That's why there aren't other universities in the US —except for Stanford— launching their own instances. What we did is totally crazy.
And who knows how many engineers are working in Stanford Online.
FredInChina
@ReblochonMasque
Yes, I agree. That's why I love it so much already... there is a sort of aura that goes with this kind of kraziness :D
Lorena A. Barba
@labarba
I hope we recover the students once the discussion board is back up. It's eerie to have things go quiet.
Email didn't work either and I had to go MailChimp!
We don't give up, though.
FredInChina
@ReblochonMasque
Yes, we'll be there, no worries - How can we help?
Lorena A. Barba
@labarba
Just keeping the conversation going in whatever platform we can get hold of!
FredInChina
@ReblochonMasque
Can do!
Thanks for all your efforts labarba, it is verrry wonderrful :)
Lorena A. Barba
@labarba
OK, guys, I'm logging out. Hasta la vista!
Chris Short
@ChristopherShort
re using Chrome...but then I'd have to finally create a config file (waiting until Matplotlib accepts them easily before doing so) Some in the class already struggling without challenges of creating config file. But will go where the good professors set requirements :-). And Lorena - thanks - you seem to be going above call of duty for this course.
FredInChina
@ReblochonMasque
GTG now, I'll check back in later.
Lorena A. Barba
@labarba
Thanks ChristopherShort. Hope to see you in the discussion board, if it ever resuscitates
FredInChina
@ReblochonMasque
I must be dense, but I can't find a link to download Lanchester's "Aerodonetics" pdf... any help?
Ashutosh Purushottam
@apurushottam
This is interesting !!
Hal Snyder
@DrXyzzy
Ashutosh Purushottam
@apurushottam
Thanks DRXyzzy :) .. the link is working
FredInChina
@ReblochonMasque
Wonderful, thanks DrXyzzy. :)
scshepard
@scshepard
I borrowed this tweet, so not sure if will help/address the MathJax issues:Scott Hanselman @shanselman · Jun 23
Exploring cross-browser math equations using MathML or LaTeX with MathJax http://hnsl.mn/1j8H5u5
Gregorio
@jgfdsa
HI! I'm starting with this great course... does anyone know if its possible to get a certificate or Statement of Accomplishment?. Thanks in advance and cheers!
Lorena A. Barba
@labarba
We were not planning to give a certificate at the end of the course, but are willing to reconsider this question later.
Gregorio
@jgfdsa
Thanks for fast replying!. Anyway I will follow the course, I find it very interesting. But if I may request it, would be very nice and useful to have at least a Statement of Accomplishment.
Krishna Bhogaonker
@00krishna
The materials and syllabus look really interesting. Just a suggestion for the future, but it would be great to also include a module on Cython so that you can offload some of the computation to C++ numerical libraries or the direct CUDA C++ interface. There are pure python libraries for some of this stuff, like pycuda or parallel python but usually those wrappers are totally impossible to debug. I also really like the cython ability to let me visualize the data directly in OpenGL. That way, again, I don't have to rely on all of these outdated python wrappers for OpenGL that are not actively maintained and again hard to debug.
Lorena A. Barba
@labarba
This is a beginner course ...
Graduate-level, but beginner ...
We are planning to have some material on CUDA Python via Numba
aarrietac
@aarrietac
Starting the day with Pyhon :smile:
Ian Hawke
@IanHawke
Ah, we've gone to $\gamma$ for angles?
Hal Snyder
@DrXyzzy
There's a feature request open for MathJax here. :smile:
some discussion of it at gitterHQ/gitter
Lorena A. Barba
@labarba
We had a huge argument with all my students about signs, it lasted like two hours!
We should've had you, Ian: you're the mathematician!
The signs of the angles turns out to be important in the whole derivation, and we were mixing things: glide angle is always positive… the glider is assumed to be going down (as weight is the driving force opposing drag). But in the analysis of the particle in a curved path, we needed theta positive upwards!
Ian Hawke
@IanHawke
I think I clocked the positivity of z issue (NOTE: someone on the forum complained about the notebook throwing an assertion error; it's precisely the positivity of z that this is about, and I think should be expected). I was always thinking even functions in the small angle expansion, though, so I missed the sign issue.
Lorena A. Barba
@labarba
The explanations needed a little more precision, but the derivation is right.
We follow Milne-Thompson (1966) and I added a note explaining that. He uses theta for the trajectory angle, positive up. That carries to equations (10), where sin theta= - dz/ds … note minus
DrXyzzy --- did you request MathJax to be available within the markdown in Gitter?
Hal Snyder
@DrXyzzy
Yes.
Lorena A. Barba
@labarba
That would be nice.
@IanHawke -- We cannot reply in the forums right now: it's broken. But yes, the error in the trajectory plotting code is probably because of the parameters they picked.
Ian Hawke
@IanHawke
Yes - I've lost some long replies in the forums the past couple of days (when testing, I should remember to keep them short...).