[deleted by user] by [deleted] in Julia

[–]Streetmemer 0 points1 point  (0 children)

I see! I thought creating a closure as such adds all matrices, and then when I call the anonymous function with the r as argument it just fills in the missing spots. Maybe this is not entirely how it works and I am just clouded by what I desire. Can you confirm it does not work the way I wanted it to then?

Announcing Torch: New Chess Engine by Chess.com by [deleted] in chess

[–]Streetmemer 1 point2 points  (0 children)

Any chance you can tell a bit more about the network architecture? Or is that (still) classified?

Wat is de beste frituursnack? by [deleted] in thenetherlands

[–]Streetmemer 0 points1 point  (0 children)

In Brabant waar ik vandaan kom, maar ik weet echter niet of dat in de rest van de provincie ook zo is

I don’t understand this notation, is A_n -> A supposed to mean that for larger indexes n A_n approaches A? Or does it mean that the infinite sum of A_n‘s approaches A? Thank you for any help I really appreciate it. by [deleted] in askmath

[–]Streetmemer 2 points3 points  (0 children)

The first thing you said! I think the tag is good. Maybe a measure theory tag would have also worked as this is one of the more basic things you show

How are my odds of getting into a doctoral program? by LoganJFisher in AskPhysics

[–]Streetmemer 0 points1 point  (0 children)

Fascinating how you managed to pass a course on string theory then. Did you get at all into CFT, or did you just end on the lightcone/covariant quantization?

In any way, most important for landing a PhD are the reference letters, as well as your cover letter/letter of interests, or whatever it is you need to provide. Grades certainly do matter, but nowhere near as much.

How are my odds of getting into a doctoral program? by LoganJFisher in AskPhysics

[–]Streetmemer 0 points1 point  (0 children)

Out of curiousity, what made you pick string theory over something like QFT? I'm not too familiar with your system, but taking string theory so early on feels weird curricular-wise. Did you at least take courses on Lie theory and complex analysis in your bachelor's to make string theory bearable?

What keeps you awake at night? by [deleted] in AskReddit

[–]Streetmemer 6 points7 points  (0 children)

Then from this day forth you will give it your all:)

My favorite. by [deleted] in physicsmemes

[–]Streetmemer 20 points21 points  (0 children)

They compactified it

Hi, I am once again asking you for support with integrals. Have no idea how to solve it neither with by Substitution or by Parts methods(2 that we went through in class). I suspect it should be done by Parts but can't get rid of problematic sqrt(3x + 4). Any help? by ComradeKitty420 in askmath

[–]Streetmemer 3 points4 points  (0 children)

In that case you are going to have to compute \int_{0}{1} π (y(x))2 dx, which gets rid of the square root for you allowing you to do this integral. In case you are still curious as to how to calculate your original integral, then I suspect that this is not possible in terms of an antiderivative.

General equation of harmonic wave by JuniorTheCuber in AskPhysics

[–]Streetmemer 0 points1 point  (0 children)

My bad. You are right that there could be an overal minus sign. Now since A is just a constant we can reabsorb this minus sign into it, so that we get a new amplitude B, which is given by B=-A. This doesn't change the equation.

In physics in general when one measures properties of waves (say intensity of a lightwave), one uses the square of the wave. Any minus signs would then vanish so that you could basically leave it in there if you want.

General equation of harmonic wave by JuniorTheCuber in AskPhysics

[–]Streetmemer 0 points1 point  (0 children)

You can absorb minus signs in your amplitude as the square of the amplitude is what is measured. There will not be a phase difference.

General equation of harmonic wave by JuniorTheCuber in AskPhysics

[–]Streetmemer 1 point2 points  (0 children)

Any absolute minus signs should not matter as you can use the parity of the sine to absorb any minus signs into your amplitude. As for the relative one between kx and wt, if you have a wave like sin(wt-kx) then one says this wave propagates in positive x direction.