« first day (2524 days earlier)      last day (1957 days later) » 

zhk
7:17 AM
T = h*1;
a = 0.628 - 0;
Flatten@N[
  FullSimplify[
   TableForm[Table[T, {h, 0, 0.628, a/579}],
    TableAlignments -> {Right}]]]

When I try to copy paste the column generated above in to excel, it has with braces.
How to copy paste it without braces?
Export works fine
 
 
5 hours later…
12:45 PM
@C.E. Have you seen (26828)? :)
 
@zhk "Right click > Copy As > Plain Text" or "Edit > Copy As > Plain Text" or "Ctrl + Shift + C" (on Windows at least, probably "Cmd + Shift + C on MacOS)
Is there a robust way to combine BaseStyle rules with other directives? E.g. in Plot[x, {x, 0, 1}, BaseStyle -> FontColor -> Red, AxesStyle -> Blue], the ticks are blue, but directly inserting the BaseStyle into AxesStyle (Plot[x, {x, 0, 1}, AxesStyle -> Directive[Blue, FontColor -> Red]]) results in a different plot:
 
 
3 hours later…
3:30 PM
0
Q: Where is the Search engine on the new StackExchange Mathematica site?

Alexei BoulbitchIn the new site, I cannot find the search machine. Where is it?

 
 
5 hours later…
8:21 PM
(* does not work *)
DSolveValue[{ \[FormalCapitalW]'[t] == \[FormalCapitalW][
    t], \[FormalCapitalW][t0] == 1}, \[FormalCapitalW][t1], t]

(* works *)
DSolveValue[{ W'[t] == W[t], W[t0] == 1}, W[t1], t]
(* works *)
DSolveValue[{ \[FormalCapitalW]'[t] == \[FormalCapitalW][
t], \[FormalCapitalW][t0] == 1}, \[FormalCapitalW], t]
I guess it's a bug. Seems like I've seen like this involving formal symbols before, but I cannot recall whether it was with DSolve or something else.
 
8:35 PM
@Silvia Thank you, this is what I wanted to know! Unfortunately it says the the found number is (much) larger than the maximum number allowed for CellularAutomaton, but I guess that is problem with their implementation.
 
 
2 hours later…
10:23 PM
anyone know offhand how to get the number of points in a Polygon (of GeoPositions)?
I hpoed it would be VertextCount but apparently not
 
10:39 PM
Here's a fun game I threw together. Guess whether the shape is a lake or an island! wolframcloud.com/objects/cb2e1853-241e-4b01-b02f-a2f2fe931f7d (mouseover for the answer)
All the data is from data.gov.ie, so all the islands and lakes are irish (in case that factors in to your guess :) ).
(now watch my cloud credits deplete to nothing)
 
10:53 PM
@CarlLange I don't think you made that public
 
@b3m2a1 Oh, thanks. Fixed?
 
Yep. One nice thing you can do if you don't want to make it 100% public, too, is you can set a PermissionsKey which basically password protects it.
 
@b3m2a1 Yes, I've used that before. I wish cloud deployment was still more seamless, but it's definitely really great when it does work.
It would be nice to be able to switch the deployment to private automatically once it's used some number of cloud credits, rather than running out completely...
 
@CarlLange Or to set a time over which it should be public.
Like let it be public for a month or something
 
11:09 PM
@b3m2a1 Yes, exactly. I don't want to have to manage my throwaway deployments
 
Okay just sent this to them:
It would be nice if we could have a duration specification for permissions on the cloud. Often I want to show something off to people for say a week or two weeks, but forget to revert its permissions or delete it.

At this point I'm subject to the whims of the internet as to whether my cloud credits get completely destroyed by forgetting to do this.

What I'm imagining is something like this:

Permissions->{ All->{"Read", "Write", ..., "Duration"->Quantity[1, "Weeks"]}, ....}

or something analogous.
Usually they make noises about considering the idea then just throw it away.
 
@b3m2a1 Thanks a lot. That would be perfect.
I'll try and bring it up in a relevant livestream, if the stars align
That can be a really effective method of getting feature requests in ;)
I feel like there are some tricks to getting cloud credit usage quite low. I suspect I could do more to help with that, but it doesn't seem like there's a lot of documentation about how to do it
 
@CarlLange my guess is anything that can effectively be pushed to JS will help
 
@b3m2a1 I would also assume doing as much computation beforehand would be helpful, but I don't know for sure. For instance, if I were to use Rasterize instead of bare GeoGraphics in my deploy...
 
To that effect I imagine that little app only really consumes credits on loading, where I'm guessing it has to pick the right thing.
Oh yeah likely
Although apparently a lot of the GeoGraphics stuff is now pure JS.
Try DynamicGeoGraphics in the cloud
Oh or not...
Maybe it's coming? There was a WTC talk on it
 
11:26 PM
$Failed, haha
But I can totally imagine it will work. It's surely somewhat low-hanging fruit to integrate with leaflet, mapbox, or similar
 
Yeah Jan Pöschko had a quick little demo where it worked better than on the desktop :|
 
Audio playback also doesn't currently work, which seems like low-hanging fruit too
 
That is odd.
That one should be really easy
 
Certainly a few years ago I remember web audio being really annoying, with different browsers supporting very different APIs. I haven't really kept up with it but I would assume it's crystallised a bit
I actually wonder how the cloud frontend performs in different browsers. I use firefox and sometimes I wonder if I would be better off using Chrome for it (not that I use it very often)
Actually, speaking of the duration specification for cloud deployments, rate limiting per user or IP would also be really nice. Sometimes if you leave a Dynamic open in a tab, it can eat away at cloud credits. It would be nice if I could say "allow this IP to use 100 of my credits and then cut it off" or something
(or ContinuousTask, AutoRefreshed etc)
 
11:45 PM
I would really like to use cloud-deployed notebooks as a blog of sorts. I know lots of people here have solutions for blogging with WL. Does anyone know of a sort of "holy grail" post explaining how I can do it the best, how to manage it, etc? I used t want to export in markdown and host myself, but I'm not sure that's the best way to go anymore...
I can't believe there's no official solution from WRI for this. Surely it's a somewhat common wish
 

« first day (2524 days earlier)      last day (1957 days later) »