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/sci/ - Science & Math

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12308531 No.12308531 [Reply] [Original]

who the fuck invented negative numbers?
they don't exist in real world

>> No.12308581
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12308581

>>12308531
but as soon as you want to describe anything you need them.

you had 10 apples.
i ate 3 of them.

>> No.12308589

>>12308581
That's subtraction, not negative numbers

>> No.12308595

>>12308531
fuck empirism

>> No.12308613

>>12308581
+7 apples?
where's the the negative, faggot?

>> No.12308614

>>12308589
imo the logical component is already implied here.
in fact it is - (+1 apple) or better - (+3 apple).

>> No.12308644

>>12308614
but you can't have an apple that represent negative number, non-existent apple is zero at best, you can't go lower

>> No.12308647

Debt
Probably a money lender

>> No.12308656

imagine trying to describe the location of a point in 1D space WITHOUT negatives

>> No.12308677

>>12308647
/Thread

>> No.12308704

>>12308656
All height is positive, latitude can be phrased as distance from the north pole. And then you have the bearing to Orion [0, 2π). No negatives in description, it's only necessary for policy and such. Lrn2polar coordinates.

>> No.12308707

>>12308644
>but as soon as you want to describe anything you need them.

>> No.12308719

>>12308531
Fucking brainlet you are op, how are you even able to string a sentence together with such a smooth brain?

>> No.12308721

>they don't exist in real world
Length of rope to the right of a knot or to the left of it.

>> No.12308797

Literally bullshit homie.
show me the proof for negative numbers.

>> No.12308806
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12308806

>>12308531
>who the fuck invented negative numbers?

>> No.12308861

>>12308531
>they don't exist in real world
neither do positive numbers
I don't understand what point you are trying to make

>> No.12308942

>>12308531
Niggers did. You now have -1 bike.

>> No.12308973

>>12308704
>1D space
>polar coordinates

>> No.12309045

>>12308531
Jews created them for keeping track of indebted goyim

>> No.12309102

>>12308531
To encapsulate your value.

>> No.12309614

>>12308942
so i had 0 bikes and 1 was stolen okay that makes sense

>> No.12309836

>>12309614
Now we are in bank territory.

>> No.12309839
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12309839

>>12308531
him

>> No.12310501

>>12308531
>Implying numbers "exist"

>> No.12310555 [DELETED] 

>>12308531
Have you ever been underwater faggot?

>> No.12310585

>>12308656
Underrated post

>> No.12310592

>>12308531
they'll exist for you when you're old enough to open a bank account, believe me

>> No.12310595

>>12310501
>implying their mappings dont
um yeah excuse me I'll have an apple's worth of apples.

>> No.12310606

>>12308589
>>12308613
subtraction of positive numbers = addition of negative numbers

>> No.12310614

>>12310606
b < x
where b = x+a
diff(b, x) -> the difference of b and x is a.
diff(5, 3) = 2
5 - 3 = 2.
misleading notation.
negative number don't need to exist for this fact to be true.

>> No.12310709

>>12308677
Follow this guy

>> No.12310750

>>12308531
I remember reading somewhere the Romans didn't have negative numbers, so it must have been fairly recently. The Indians maybe, considering they invented zero?

>> No.12310759
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12310759

>we don't need negative numbers lol
>if I owe you 15 dollars, the difference in our money is still 15
>we just need to keep in mind whether I owe you, or whether you owe me
>maybe we can use a single symbol to make this distinction, it'll save us some writing
>wait did I just accidentally negative numbers?

>> No.12311213

>>12308531
retard just step in a hole

>> No.12312878

>>12308861
here you go:
1 apple

>> No.12312885

>>12310759
>I owe you 15 dollars
>not -15
See?

>> No.12314217

>>12308973
(x,2pi) is the positive direction, (x,pi) is the negative direction, with those two angles being the only accepted inputs.
Now seethe

>> No.12314224

>>12314217
what the actual fuck

>> No.12314235

Negative numbers are just the extension of the natural numbers so that we can solve certain equations.

If you think only about natural numbers equations like

X=2+2
Y=3-1

Can be answered. But other equations like

X=5-7

Would have no answer in the natural domain. Thus negative numbers where introduced.

The same goes for imaginary numbers. They were introduced to solve equations with negative square roots.

>> No.12314247

>>12314235
Whoa let me ***extend*** the reals to include a solution for 1/0
See how dumb this sounds?

>> No.12314286

>>12314247
You can try.
Just make a number (say K) what when multiplied by 0 is equal 1.

The problem is that would be inconsistent with a number times 0 equal 0 derived in the previous set of numbers.

The extension with negative numbers and imaginary that I mentioned don't make any inconsistence with the previous set. You can get the same answers found in the previously set as a special case of the new extended set.

>> No.12314732

>>12308531
It depends of where are you using. In fields like vectors, kinematics or dynamics, it can be negative position because the viewer's points is (0,0), meaning that the position is relative. Obviously, in cases such the basic problem of "If there is 3 apples and someone grabs 4, how many apples are there?", the negative result is by common sense an ilogic one.