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Do you find math interesting or fun?

The koolest subject in the world!
6.67% (1 vote)
Yes
20.00% (3 votes)
No
6.67% (1 vote)
Sort of
33.33% (5 votes)
Super boring
33.33% (5 votes)

Total Votes: 15

Should the "number" i exist?
Posted:

Should the "number" i exist?Posted:

Mr_Quacker
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Is There A Problem With i?

The (-1)=i. Here is the problem, there is no solution to this. The (a^2)=(a*a), sure (i*i)=-1 but how can i be used if at the very fundamental part of this it has no solution. Wouldn't this mean that anything we use i in would have a portion that isn't fundamentally solved? i is used a lot in math and the math makes sense to me when I look at it but I can't help to think if we should be using it if it starts with no solution...


Another interesting thing to think about is what if our current math system is wrong? I mean there are a ton of problems in math that we either haven't solved yet or a huge thing, we don't have the right math system to be able to understand/solve these problems. For example Zeno's paradox [ Register or Signin to view external links. ] , are we unable to solve this due to a lack in our math system or do we just have to keep trying to come up with ways to solve it?

let me know what you guys think or if you have questions.
#2. Posted:
Saki
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Man, you lost me at the first equation.


Last edited by Saki ; edited 1 time in total
#3. Posted:
Bebe_Rexha
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I'm in set 1 maths doing my GCSE's, and I was lost after the first equation...
#4. Posted:
PCMasteer
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I speak english not that hobi juvie xD I'm bad at maths
#5. Posted:
Batman-
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I was lost after the first word
#6. Posted:
Rest
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Why did i click on this topic, math is my enemy :/
#7. Posted:
Saki
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HACKZpwn wrote I was lost after the first word


You: *thinks to self* Maybe if I can come up with something clever to say, I could get a whole bunch of likes! *thinks of something* ... Eh, this is hard! I know, let me go downvote everyone elses post so I have a better chance at getting all the likes! *downvotes everyones posts* Hah! I did it, I know what to say now!

*post* This will surely get all the likes!

*comes back 3 hours later* Likes: 0
lolnope


Yeah, your post wasn't funny, I was being serious with mine -- you made yours for internet points. Your plan failed and you should feel bad.
#8. Posted:
BobMarIey
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Actually i isn't -1. i is the square root of -1. And it has incredible use when creating formulas and solving through them. Though i gives us no set tangible solution per say, it does explain a theoretical value and helps us to find values for the square root of negative numbers. Sure there may appear to be flaws in our mathematical system, but until someone can solve for one that is correct or why one is wrong, don't fix what's not broken.
#9. Posted:
MRPANNELL8
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If I recall correctly from my GCSE's the number 'I' does exist but it is just there as an imaginary number
I can't seem to think if any equations in which 'I' is used though, if I find one I will share
#10. Posted:
TSNYC
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Firstly you have incorrectly stated that i=-1

i=/=-1 in fact i=sqrt(-1)

Just because no real number has this property doesn't mean it's not useful. In fact quite the opposite i is used in various different waves by engineers and physicists alike, for example a lot of wave theory can be simplified using it and it can be used to describe a lot of motion like simple harmonic using the property that cos(theta)+isin(theta)=e^(i(theta)) (this is where you get e^(i*pi)+1=0, euler's formula which is one of the most famous formulas in the world)which is obviously useful for describing oscillations etc.

There is lots of complicated maths behind it and it's actually pretty interesting, when I first encountered it I though it was a bit strange as how can a number be imaginary? But if you think about it all numbers and mathematical techniques are used to help us in the real world so why should i be any different.

There is lots of stuff if you want to learn more online.


Spicoli wrote Actually i isn't -1. i is the square root of -1. And it has incredible use when creating formulas and solving through them. Though i gives us no set tangible solution per say, it does explain a theoretical value and helps us to find values for the square root of negative numbers. Sure there may appear to be flaws in our mathematical system, but until someone can solve for one that is correct or why one is wrong, don't fix what's not broken.


You can get real solutions using i though. This becomes obvious when you consider that i^2=-1 which is a very real number.


To the original question, yes of course it should exist it has many many uses that can be very useful in a number of circumstances.


Last edited by TSNYC ; edited 1 time in total
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