The DW Math Thread

Gratz on your math thread Decus!

Just wanted to mention that I`m automatically blacklisting this thread b:chuckle

Good luck! b:cute

-999
whats so neat about -1 2 -3 4 -5? o.O

Is the answer gin?

I like gin.

OMG it's math.

RUUUNNN for your lives b:surrender

Tearle - Dreamweaver wrote: »

-bookmarks thread-

Ok I need to figure out a Northwest ordinance problem with an X in the first provided row. Normally I can do Nw. ordinance but when you add letters into math, things get upsetting for me ;_;
How do you find what X is without any other provided information except the uh, graphy thingy with the boxies? Because you can't do the problem without all the numbers and I cant give answers with any unknowns in them q_q

Also how is i imaginary and yet real at the same time ;-; letters shouldn't be in math. They should stay in writing.

Just put on your paper that the Northwest Ordinance has no constitutional authority.b:chuckle

And imaginary numbers aren't really imaginary, love. It may not exist in the four basic number systems (Natural, Rational, Integer, Real) it exists in the complex number system.

-incoming convoluted/poor explanation-

Consider this rule for multiplying complex numbers:

(a,b)(c,d) = (ac-bd, ad+bc)

Keep in mind that imaginary numbers are multiples of i. We can prove that i exists by finding a number squared that equals -1. The number system (0,1) is such.

(0,1)(0,1) = ( (0)(0) - (1)(1), (0)(1)+(1)(0) ) = (-1,0)

The complex number (-1,0) is different from the real number -1, though. It's a pair of real numbers, -1 and 0, not a single real number.

Now, consider the rules for adding complex numbers:

(a,b) + (c,d) = (a+c, b+d)

Complex numbers of the form (a,0) behave identically to the way ordinary real numbers a behave. They add and multiply in exactly the same way that ordinary real numbers do. So:

(a,0) + (b,0) = (a+b,0)
(a,0)(b,0) = (ab,0)

But since real numbers a and complex numbers of the form (a,0) are the same as far as their arithmetic behavior is concerned, you view them as just two different representations of the same concept.

So, you can say the complex number (-1,0) and the real number -1 are the same. Thus, (0,1), when squared, gives -1. So, i exists. It is just the pair of numbers (0,1) under the above rules for adding and multiplying.


Decus can probably explain better, i'm just regurgitating what my math teacher told me freshman year.

Uhm, the northwest ordinance its like for data and timing things I guess? I was absent when my teacher taught it but it's a box like matrix thingy with more boxes and there's way too many numbers ;-;

does that make sense?

I'll see if I can draw it...


Epic paint skills... sorry for it sucking :c

GoodStart - Dreamweaver wrote: »

Decus pimps 4 ho's. If the price is $75 per trick, how many tricks per day must each ho turn to support Decus' $1,300 a day crack habit?




+2 to my post count. (2 = 1 duhhr)

4 and one third.b:cute

Not sure which troll this is...Zan?

Sorry, but if I couldn't do simple story problem math like that I'd have killed myself a long time ago.

No, I suppose you're not Zan. He's at least a bit more clever.

b:surrender

I am being nice.

I wanted to add an amusing word problem to partake in the festivities. It's just kind of tricky, that's all.

I expected to be told to go die alone in a corner, but not this.


b:cry

Zanryu - Dreamweaver wrote: »

Me first, please, save me from the tyranny of math!

He'll murder you using long strings of various formulas.

Then he'd start torturing Grim with even more math for daring to close this thread.

Veonita - Dreamweaver wrote: »

The answer is 42.

no It's 2^18.

Indeed