The h Bar

Secret

12:22 AM

$user image$

3

I wonder if we can make a quantum field to behave like that

Sir Cumference

God I'm sick of Word crashing on me when I'm trying to work

0celo7

12:47 AM

@SirCumference that's your fault for using word

Sir Cumference

@0celo7 As opposed to what? LaTeX?

Joshua Lin

Does anyone have any idea how to treat this integral in the limit of large $a$?
$$\int d^3 y\ d^3 z\ d^3 p\ \frac{e^{i p \cdot (\vec{z}-\vec{y})}}{p} e^{-(|y-x|+|z-x|)/a^2}$$

0celo7

@SirCumference yes

Sir Cumference

@0celo7 Latex is only more difficult

0celo7

@SirCumference Yes, probably

But more stable for sure

vzn

2:58 AM

Secret

?

Cows

3:28 AM

Prepping notes for a (programming ) class I have to teach(in the 5000-mile radius hehe). Yeah I guess this is happening lol

I start teaching tomorrow

John Rennie

5:03 AM

@Blue I wonder if your regional settings are messed up. The clocks went forward in the UK on Sunday and it seems a strange coincidence that your laptop time should start playing up on the same day.

The Windows install files are the same for all regions. It's only the region settings in Windows that change.

Internally Windows always uses UTC time. All the regional settings do is define the offset to be added whenever the time is rendered for viewing by the user.

Ryan Thorngren

5:37 AM

@Secret looks like string nets

dmckee

@JohnRennie As far as I know this strategy is the one adopted by most modern OS.

Of course, last time I installed Debian it still had the option to set you motherboard clock to local time, but only if you (a) ran the expert install and (b) expanded several layer of stuff that recommended you accept the default unless you knew what you were doing.

But Debian doesn't like to throw stuff away, even when it is bonkers.

0celo7

5:49 AM

Thesis draft link

Sir Cumference

6:03 AM

@Secret The one thing I hate is when physics concepts are introduced in math courses. It should strictly be the other way around

Math has no physical dependence

John Rennie

@dmckee I did my first 32 bit Windows programming (on NT 3.1 !!!) in winter, when local time and UTC matched, and I didn't realise until the next spring when my programs started going wrong :-)

0celo7

@ACuriousMind see the link above

Ryan Thorngren

sir cumference you remind me of the detractors of calculus who said that motion has no place in mathematics

Sir Cumference

@RyanThorngren "Motion"?

I'm just saying that math classes shouldn't introduce applications

ACuriousMind

6:19 AM

@0celo7 Noted and downloaded, it'll take me a while to read it though - I'll probably get to it tomorrow evening :)

@SirCumference Simple applications are often very good motivations, though. Is it not much clearer why one would want to compute derivatives if one knows that the derivative of position over time is velocity?

Sir Cumference

@ACuriousMind Very true. But sometimes they back fire. One of the reasons why parametric functions confuse so many people at first is because they think it has something to do with time.

The limit definition of $e$ bores some people because they assume it has to do with monetary interest rates.

Introducing the line integral with a moving particle, or however, creates the idea that math has a physical dependence

ACuriousMind

Apparently you have encountered very different people than I have...

I've never met someone who thought $e$ had to do with finance :P

Sir Cumference

@ACuriousMind Well, I may have stretched that one a bit

ACuriousMind

Anyway, much as I'd love to discuss math pedagogy, I should go to work. Cya!

Sir Cumference

And I ought to head to bed, it's 2:26am. 'Night

0celo7