rubah: (Default)
[personal profile] rubah
I decided to stop photographing my flower partially because no one cared, but also because the rest of it didn't bloom and the first bloom was dying so xD. There's about three different kinds of little greens things that have shot up at the bottom. One is bermuda grass I think, one I recognize, and the third I don't.

Anyways, my laptop and my speakers do weird things. In the snow-citement this morning, my speaker I had juryrigged on my bedsprings fell and the plate came off and dented teh corner, but it still works fine, but that's irrelevant to this;

k so, when I have my laptop plugged in, my speakers plugged in, and my speakers on, they make this terrible buzzing sound.

Just now I had my printer plugged in and went to unplug it because it's an annoying cord, and BAM buzzing started. I go 'lol whut?' and replug it, and it STOPPED.

So now I'm kinda freaked out, because does that mean the power supply is supplying all these extra electrons to my laptop, WHERE DO THEY GO? If the printer can suck enough of them away that they make the buzzing stop, omp MILLIONS OF COULOMBS FLOWING THROUGH MY FINGERS AS WE SPEAK.

I also rediscovered the purpose of f8, f9, and f10. namely the toggles for the backlighting on the keyboard. I'd been wondering why that wasn't on.

So I have to ask, wtp do those electrons go and how can i make them stop. I guess I could short out one of my usb ports (or maybe the firewire one! I never use it!) buuuuuuuuuuuuuuuuuuuuuuuuuut whatever. At least I know it isn't the MAGNETISMHO.

Okay, I need some serious help with limits. We're doing improper integrals, and I keep getting these crazy limits and I'm like 'what, no I don't know what the arctan(x) is as x->∞ (it's pi/2 btw). In fact, I can barely work limits as it is. Well, if they're at 0 and ∞. l'hôpital wasn't this bad. Arctan(x) at infinity. It boggles the mind.

Date: 2008-03-05 01:05 pm (UTC)
From: [identity profile] baloki.livejournal.com
It's more likely interference from a local source thats making the speakers buzz, try moving them away from the laptop, unless their integrated?

Date: 2008-03-05 03:44 pm (UTC)
From: [identity profile] jume.livejournal.com
They only buzz when the laptop is plugged in :p

Date: 2008-03-05 07:32 pm (UTC)
From: [identity profile] sepho.livejournal.com
I'm not sure how you would solve it algebraically, but if you examine the graph of arctan(x) and follow the y-coordinate as you move farther along the x-axis in the positive direction, you can observe that it comes closer and closer to pi/2.

Which makes sense; Because tangent is not defined at pi/2, the range of the arctangent function is -pi/2 < y < pi/2.

Similarly, the limit of the same function as you approach negative infinity is going to be -pi/2.

Date: 2008-03-05 09:32 pm (UTC)
From: [identity profile] jume.livejournal.com
I asked for, and recieved a good dose of trig in class today. Apparently we need only worry about arcsin and arctan (and arccos in as much as it is related to arcsin)

Date: 2008-03-05 09:31 pm (UTC)
From: [identity profile] jume.livejournal.com
then you, like liz, can request updates on it!

there's a bunch of grass growing in the pot right now, and they're all kinda limp, and I need to water it.

Date: 2008-03-05 09:33 pm (UTC)
From: [identity profile] jume.livejournal.com
later, good sir. later.

Profile

rubah: (Default)
Allison

January 2017

S M T W T F S
1234567
8910 11121314
15161718192021
22232425262728
293031    

Most Popular Tags

Style Credit

Expand Cut Tags

No cut tags
Page generated Jan. 24th, 2026 12:45 pm
Powered by Dreamwidth Studios