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Jeremy T
Given Vector A, how do i find vectors B and C such that all 3 vectors are perpendicular?
Given vector A = (a1, a2, a3)
How do I find any vector B that is perpendicular to A? I feel like it should be easy but i'm stuck. Once I've got that. I believe this formula will allow me to find vector C.
(a2b3-a3b2), -(a1b3-a3b1), (a1b2-a2b1)
In case anyone is interested this is for a game i'm working on. C is the direction of gravity in the game, as the player moves the mouse up and down the camera should rotate vector B up or down along C.
Thanks in advance, i'll spend the next few minutes answering nooby questions to pay it forward.
4 AnswersMathematics1 decade agoJapanese listening comprehension practice?
I've been casually studying japanese for a while now and have gotten into a bit of a rut. I've gotten pretty good at formulating basic phrases with a moderately vocabulary, but i find 99% of spoken japanese goes right over my head.
I think the problem is that the taps and other reasources i've used are mostly in the format <english phrase> <Japanese translation>
Does anyone know of any taps in the format <Japanse> then <english translation>? I think this would help me a lot.
Any general advice is welcome too. I'd love to get to the point were i understand bits and pieces of Japanese TVs shows and movies.
Thanks
2 AnswersLanguages1 decade agoWhat are some good sources of Japanese writing to practice translating?
I was thinking there are tons daily web comics i enjoy reading and hoping to find a few written in japanese. Its seems like a good way to practice. Every morning or evening I'd translate a few of the days comics. I'd prefer one that were written with few or no Kanji because there are just way way to many Kanji characters.
If nobody knows of anything like that, please suggest any other material you think might be good. Web based it nice, I'm not opposed to buying something of amazon (or whereever) or going to the library.
1 AnswerLanguages1 decade agoUS passport needed in less the 2 weeks?
I need a passport by Friday of next week. The website says you have to make an appointment at a regional office. The office nearest to me has times available Monday morning.
Does anyone know if they print the passports and give them to you on the spot? Or do you have to wait for them to mail them to you? I called them but it was an automated machine, and wasn't very informative.
4 AnswersOther - Destinations1 decade agoMcCain supporters, what do you think of his vote on the bail-out-bill despite its many earmarks ?
This article is perhaps a little to strongly worded but it raises a valid point.
http://www.dailykos.com/storyonly/2008/10/2/103533...
McCain has made a big deal about opposing earmark spending. The bail-out bill-includes, "$195M in tax cuts to Puerto Rican rum makers, millions to makers of children’s wooden toys, race track makers, and wool fibers"
His vote won't have made a different as the bill passed 75-25.
Read or skim the article and say how you feel about McCain's decision. Did he break his campain promise? If now, how to do you justify his position? If so, has this weakened your support for him?
15 AnswersElections1 decade agotough SQL question ?
I have a table like.
location - amount
a - 10
b - 15
c - 7.
I want to write a query that returns the locations to go to in order to extract some quantity. so if the quantity was 7 it would return c - 7, if the quantity was 10 it would return c - 7 and a - 3.
Any thoughts on how to do this?
4 AnswersProgramming & Design1 decade agoDoes anyone else like there in an ocean of stupid?
Just about every question in this category is stupid. Someone will try to make a big deal about McCain's houses. Obama is a commie. McCain hugged bush once. Obama sounds like Osama. Its like people aren't even trying to think.
I feel the need to help people be less stupid, but the stupid comments and questions outnumber the smart ones by so much that its hopeless.
I eventually give up and go back the the computers category to help people with viruses.
But please people. Please please focus on the candidate's policies. Things like how are we going to fix education or the debt or the war, are what need to be focused on. Don't let yourselves get distract with irrelevant BS.
28 AnswersPolitics1 decade agoSpore, space phase, constant colony attacks?
I'm playing the video game spore right now. I'm at the space phase, and i want to explore and terraform planets ect, but my colonies get attacked every 2-3 minutes. Basically the entire phase has become really crappy UFO fighting.
Does anyone know if there's a way turn these attacks off?
2 AnswersPC1 decade agoDoes anyone know a good auto mechanic near down town Indianapolis ?
I have a 1995 Chrysler Cirrus.
Its having problems with the transmission. Its and automatic. It was running fine on the high way when it suddenly shifted into a lower gear and rpms shot way up. After about a second, it shifted back to the correct gear for a while, but then shifted down again and hasn't been able to shift top gear since.
I took it to a local mechanic at the nearest exit. He tried to hook a diagnostic device up but the device said it couldn't connect to the computer.
Maybe the car uses a computer to shift gears and the problem is electrical?
Any advice is much appreciated.
2 AnswersMaintenance & Repairs1 decade agoGood benchmark summary website, for video cards?
I'm looking for something like this, but for video cards.
I'm not sure if one exists but, that site has been incredibly helpful for comparing different CPUs. It would be really nice to look at various graphics card side by side by side,
1 AnswerAdd-ons1 decade agoNeed help with SQL? Maybe something like a foreach loop, if thats possible.
i have this query
select sum(total_qty)
from shipment_detail
where item= 'item001'
and status1 <= 700
i want to run it for every distinct item in my shipment_details table. So i want to know how many item001's how many item002's item003's ect.
using Microsoft SQL server management studio.
any ideas?
1 AnswerProgramming & Design1 decade ago