/sci/ - Science & Math

wow u trikt me nice science geek

infinity(1)/infinity=infinity(2)/infinity not true infinity/infinity= undefined
But you're probably just a troll.

Algebra doesn't work for concepts like infinity.

Let a=b.
Then a^2=ab,
a^2+a^2=a^2+ab,
2a^2=a^2+ab,
2a^2-2ab=a^2+ab-2ab,
2a^2-2ab=a^2-ab,
2(a^2-ab)=1(a^2-ab),
cancel out (a^2-ab) from both sides,
2=1

>>5880122

Divide by zero error.

>>5880122
it's basically like saying 2*0=1*0

Good explanation, OP. Now I understand infinity.

>>5880063
>Algebra doesn't work for concepts like infinity.

http://en.wikipedia.org/wiki/Extended_real_number_line#Algebraic_properties

There's a reason calculus exist, OP.

OH GOD YOU FOUND A HOLE IN MATHEMATIC !!!!

>>5880124
What do you mean? That is not an "error".

>>5880122
You cancel out by dividing.
Dividing is defined only when the divisor is nonzero.
Your divisor (a^2-ab) is zero because a=b.
You can not cancel out.
Your slight of hand has been caught by another magician.

>>5880041
division by infinity equals 0, regardless of cancellation. /thread

>>5881967
Newton didnt invent calculus to solve riddles and parlour games

>>5880123
youre right!

Infinity IS zero.

Zero contains all numbers, positive and negative.

7x=0
7x/x=0/x
7=0/x
7=0

7=0

wtf

>>5883294
>7x=0

>>5883294
I stopped caring about math when I was introduced to the concept of imaginary numbers. What a crock of shit. If your equation can only be solved by inventing numbers that can't exist, like some kind of math deity , then you are fucking wrong and the math is flawed. Same for algebra solutions that basically say "the correct answer is whatever the correct answer is". Thats what the math said transcribed to words but god forbid if i wrote in down in english instead of the ancient math runes the teacher word mark me wrong.

Math is logical and numbers never lie my ass. Math is just as flawed as any other human construct.

>>5883314
The moment you stop declaring what the precise value to a variable is, is the moment the logic in your equation is false.

>>5883337
>The moment you stop declaring what the precise value to a variable is, is the moment the logic in your equation is false.

You misunderstood how maths works. We can always write down the equations. Solving them is a different issue. If you knew the solution beforehand you wouldn't need to solve for x anymore.

>>5883314
dhat copypasta

>>5883288
>Infinity IS zero.
Infinity minus infinity is zero.

>>5880122
>Let a=b.
>Then a^2=ab,
>a^2+a^2=a^2+ab,
>2a^2=a^2+ab,
>2a^2-2ab=a^2+ab-2ab,
>2a^2-2ab=a^2-ab,
>2(a^2-ab)=1(a^2-ab),
>cancel out (a^2-ab) from both sides,
>2=1


Let a=b.
Then a^2=ab,
a^2+a^2=a^2+ab,
2(a^2)=a^2+ab,
2(a^2)-2ab=a^2+ab-2ab,
2(a^2)-2ab=a^2-ab,
2(a^2-ab)=1(a^2-ab),
2(a^2-a^2) = 1(a^2-a^2)
2(0)=1(0)
0=0

>>5883294
Perfectly valid math in wheel theory.

>>5884942
The last line is wrong. Read the OP.

>>5887355
>The last line is wrong

Are you saying 0=0 is wrong?

>>5883294
7x≠0

>>5882793
It is, dividing by zero is not defined, it can't be defined get your pleb level shit out of here, also
sage

>>5880041
Infinity/infinity undefined.
undefined=undefined
Move on.

Infinity isn't a fucking number. Get over this shit.

>>5884870
what about infinity x infinity?

>>5883288
so philosophy

so deep

so mathematic

>>5880041
In this thread: people who should take calculus

>>5889094
It is an open problem in number theory.

>>5889578
How does calculus help with number theory?

>>5890628
It is known as analytic number theory.

lrn2 cardinal arithmetic

>>5883047
What? Of course he did, a key prompting for Newton's work were the casual investigations and tricks of the recently proposed cartesian physical system. That's even where the name of his book comes from.

>>5890628
It doesn't help here, but once freshman learn about limits and integration they like to go into every. fucking. thread. and suggest that those two can solve any problem. A few weeks ago someone was suggesting limits be employed on diophantine equations.

>>5889094
Infinity x Infinity = Infinity. or it equals infinity^2.

>>5880122
OWMAGAWD R U SAYIN DAT 2X CAN EQWAL X???!?

THERE ARE NO NUMBER THAT WORK FOR X! CERTAINLY NOT ZERO

>>5891404
What is cardinal arithmetic?

>>5893109
You will learn about it in graduate school if you specialize in infinitary number theory.

>>5893814
I don't like number theory. It has no applications.

>>5891846
It depends on whether you consider 0 a number. Some mathematicians do, others don't.

infinity isn't transitive

>>5894929
Why do some mathematicians study it?

>>5897794
Only the most autistic ones study it. Most mathematicians don't care.

>>5896941
Infinity is everything.

>>5899853
If it was everything, it would also be zero. I'm sure infinity isn't zero.

I like to just think of infinity as min/max limits.

>>5901105
I thought it was. Negative infinity plus positive infinity is infinity. This reduces to zero.

>>5901882
The result is wrong but I don't see the flaw in your logic. Let me think about it.

1. The Zero
2. Infinitesimal (forever approaching, but never reaching zero)
3. All finite numbers between the infinitesimal and the infinite (including all fractional, irrational and trancendental numbers)
4. Infinite (forever approaching, but never reaching infinity)
5. The Infinity

>>5903291
Thank you. I will eagerly await your return.