The Julia Language

I am capturing some notes that @staticfloat wrote in an email exchange. It would be a good idea to clean these up a bit and capture them somewhere. Is the dev docs section in the manual the right place?

https://docs.google.com/document/d/1m1S6_Ohn5i747FCV0V0NEdbWW08foOLG9D1H8LKNvx4/edit

@DilumAluthge may be the right person to know where this should live.

In recent versions (can't say from exactly when), there seems to be an off-by-one error in dcc.DatePickerRange. I set max_date_allowed = datetime.today().date(), but in the calendar, yesterday is the maximum date allowed. I see it in my apps, and it is also present in the first example on the DatePickerRange documentation page.

E

When I save any of my notebooks as HTML in Safari, the output file is always called true.html. The name of the output file is correct in Chrome, though.

• MacOS 10.15.7
• Safari 14.1.2
• Pluto v0.15.1
• Julia 1.7.0-beta3.0

The same user as #2662 asked for ways to solve a collection of problems over a set of parameters. We don't have a good way of doing this in JuMP (we have @NLparameter, but not @parameter), but it could be scripted using the modification API (or even just rebuilding the problem).

We should write a tutorial with the different approaches. Here's their suggestion:

![image](https://user-image

It would be nice to support adding arrow annotations to plots, similar to pyplot.arrow (from #245).

The following code gives a segfault with Makie 0.15 and Julia 1.6.1 (also reproduced with 1.7-beta2):

using Makie

xs = range(150, 160, length=100)
ys = range(7, 9, length=100)
points = [(x, y, 0.0) for x in xs for y in ys]
x, y, z = map(i -> getindex.(points, i), 1:3)

flags = (153 .< x .< 153.5) .& (7 .< y .< 7.3)
surface(y[flags], x[flags], z[flags]);

Starting Julia

I found that function mod2pi is not implemented yet, but mod works. Is there any list of implemented functions? Minimal working example is:

using Zygote

# This is working
gradient(x -> mod(x, 2pi), 1.)

# This is not
gradient(x -> mod2pi(x), 1.)

In order to profile and optimize the current inference server architecture and best tune its hyper-parameters for various applications, it would be very useful for AlphaZero.jl to have a mode where it outputs a debugging timeline in which it is possible to easily visualize when each worker submits an inference request, when it gets an answer, and when inference concretely runs on the GPU (along wi

In Exercises 10.1, the outer product in Take the outer product of a vector v with itself and assign it to variable cross_v should be cross product.

The basics of DiscreteSystem exists now, but the little details around it need to be finished.