"The true metaphysics of the square root negative 1 remains elusive." - C.F. Gauss

[IBDaMann]

Then what is the j operator?????

The j operator is defined as the number that, when squared, equals -1. Notice that there are no square roots of negative numbers in that definition because you can never take the square root of a negative number, i.e. j * j = -1

I realize that your mathematically incompetent tendency is to take the square root of both sides in the above equation and claim that j therefore equals the square root of -1, but you cannot, because you cannot take the square root of -1.

Have you EVER considered simply looking up the mathematical proof that confirms what I am teaching you? Have you EVER considered the reason that all children are taught the invalidity of taking the square roots of negative numbers? Jussayn.

 

[IBDaMann]

Theoretical physics outran mathematics as a useful descriptive language decades ago,

False. As science is developed, math is developed commensurably to express the science.

'imaginary' numbers are merely limits in reverse.

False. The "imaginary" number is simply defined. Irrational numbers are limits, and not in any sort of "reverse."

 

[IBDaMann]

I think the word "imaginary" just gives people who never advanced beyond 10th grade math the wrong impression.

People who never advanced beyond 10th grade math are more likely to mistakenly believe that square roots of negative numbers are somehow valid.

The word "imaginary" was used because that particular number is defined as being a number that when squared, produces -1, which is otherwise not possible. There is nothing in that definition that somehow erases the prohibition against taking the square root of negative numbers.

 

[IBDaMann]

OMG, you really are intellectually marooned.

I see you have finally resigned and tipped your king.

 

[EdwinA]

False. As science is developed, math is developed commensurably to express the science.


False. The "imaginary" number is simply defined. Irrational numbers are limits, and not in any sort of "reverse."

Fake news. It bogged down and we're left with that bizarre 'string theory' now. And I said they were limits, dumbass. You need to learn to read without your head up your ass.

 

[IBDaMann]

Fake news.

Nope. The demands of science are not somehow facing any mathematics shortfall.

It bogged down and we're left with that bizarre 'string theory' now.

Nope. "String Theory" is a minor religion that has scientific illiterates, such as Cypress, claiming that it is somehow the greatest scientific achievement. If you simply ignore that particular faith, I assure you, it will go away.

And I said they were limits, dumbass.

I read what you wrote, cum-bubble, and you were again blabbering gibberish as usual. If you would take notes on what I teach you, you wouldn't have half the problems you obviously do.

You need to learn to read without your head up your ass.

You need to live without your head up your ass.

 

[EdwinA]

Nope. The demands of science are not somehow facing any mathematics shortfall.


Nope. "String Theory" is a minor religion that has scientific illiterates, such as Cypress, claiming that it is somehow the greatest scientific achievement. If you simply ignore that particular faith, I assure you, it will go away.


I read what you wrote, cum-bubble, and you were again blabbering gibberish as usual. If you would take notes on what I teach you, you wouldn't have half the problems you obviously do.


You need to live without your head up your ass.

Yes, keep babbling idiot crap, hoping you eventually bore people and Post Last, like an imbecile. You just have no idea what anybody is talking about, as usual, dipshit.

 

[IBDaMann]

Yes, keep babbling idiot crap, hoping you eventually bore people and Post Last, like an imbecile. You just have no idea what anybody is talking about, as usual, dipshit.

Well, look at you! You are a random phrase generator after all. You had me fooled.

 

[EdwinA]

Well, look at you! You are a random phrase generator after all. You had me fooled.

And the dumbass has to Post Last!!!, as usual. lol

 

[Trumpet]

The j operator is defined as the number that, when squared, equals -1. Notice that there are no square roots of negative numbers in that definition because you can never take the square root of a negative number, i.e. j * j = -1

I realize that your mathematically incompetent tendency is to take the square root of both sides in the above equation and claim that j therefore equals the square root of -1, but you cannot, because you cannot take the square root of -1.

Have you EVER considered simply looking up the mathematical proof that confirms what I am teaching you? Have you EVER considered the reason that all children are taught the invalidity of taking the square roots of negative numbers? Jussayn.

So you're saying that a number can be squared and equal -1, but this number doesn't have a square root, ,and you call me mathematically incompetent. If you would care to research this matter, you would find that the square root of -1 is an imaginary number.

What is j Operator?​

j Operator is a mathematical operator which when multiplied with any vector, rotates that vector by 90 degree in anti-clock wise direction. Just like symbols x, +, – etc. are used with numbers for indicating certain operations to be performed on those numbers, j operator is used to indicate the counter-clock wise rotation of a vector through 90°.



j operator has been assigned a value of √(-1). Thus, it is an imaginary number. The double operation of j on a vector rotates it in counter-clock wise direction through 180°. Thus, the direction of vector gets reversed when double operation of j is performed on a vector. Therefore, we can write,

j Operator and Its Significance - Electrical Concepts

j Operator is a mathematical operator which when multiplied with a vector, rotates it by 90 degree in anti-clock wise direction. j operator explained.

electricalbaba.com

 

[Cypress]

So you're saying that a number can be squared and equal -1, but this number doesn't have a square root, ,and you call me mathematically incompetent.

He is not the brightest bulb
I thought this thread might possibly be interesting for people who advanced beyond 10th grade math, but I had no idea it would appeal to people who stopped at 6th grade math!

 

[Cypress]

People who never advanced beyond 10th grade math are more likely to mistakenly believe that square roots of negative numbers are somehow valid.

The word "imaginary" was used because that particular number is defined as being a number that when squared, produces -1, which is otherwise not possible. There is nothing in that definition that somehow erases the prohibition against taking the square root of negative numbers.

I never had a single math teacher in high school or college say that the sqrt of negative one is the wrong definition for i

Apparently you believe you have overturned two centuries of settled mathematical consensus.

 

[Trumpet]

He is not the brightest bulb
I thought this thread might possibly be interesting for people who advanced beyond 10th grade math, but I had no idea it would appeal to people who stopped at 6th grade math!

This clown lives in his sphere of reality.

 

[AProudLefty]

People who never advanced beyond 10th grade math are more likely to mistakenly believe that square roots of negative numbers are somehow valid.

The word "imaginary" was used because that particular number is defined as being a number that when squared, produces -1, which is otherwise not possible. There is nothing in that definition that somehow erases the prohibition against taking the square root of negative numbers.

Now i^2 = -1 also is a math error?

You're all over the board.

 

[Trumpet]

Now i^2 = -1 also is a math error?

You're all over the board.

Please don't overwhelm IBDaMann's with facts that he simply doesn't understand.

 

[IBDaMann]

Now i^2 = -1 also is a math error?

Why would you ask that? It's a really stupid question. You're all over the board.

 

[IBDaMann]

Please don't overwhelm IBDaMann's with facts that he simply doesn't understand.

So you are just as confused as AProudLefty. Why are you even pretending to engage in any discussion on math?

 

[IBDaMann]

I never had a single math teacher in high school or college say that the sqrt of negative one is the wrong definition for i

That's what happens when you play hooky for most of your education.

Apparently you believe you have overturned two centuries of settled mathematical consensus.

Apparently you mistakenly believe that you have some sort of understanding of math.

 

[IBDaMann]

So you're saying that a number can be squared and equal -1,

That is the definition. If you are operating under the assumption that I was the one who authored the definition, you are mistaken.

but this number doesn't have a square root,

Correct. You can't take the square root of negative numbers, but I see that you are too stupid to learn even something so simple and straightforward.

,and you call me mathematically incompetent.

Yes. That, I do. I also call you too-stupid-to-learn. I wonder why you feel the need to gibber on math.

If you would care to research this matter, you would find that the square root of -1 is an imaginary number.

If you would care to research the mathematical proof that shows you to be utterly mistaken, you'd see that you cannot take the square root of negative numbers.

I see that you still haven't researched that proof. I see that you believe you get to make up your own math.

 

[AProudLefty]

That is the definition. If you are operating under the assumption that I was the one who authored the definition, you are mistaken.


Correct. You can't take the square root of negative numbers, but I see that you are too stupid to learn even something so simple and straightforward.


Yes. That, I do. I also call you too-stupid-to-learn. I wonder why you feel the need to gibber on math.


If you would care to research the mathematical proof that shows you to be utterly mistaken, you'd see that you cannot take the square root of negative numbers.

I see that you still haven't researched that proof. I see that you believe you get to make up your own math.

Hence the concept of imaginary numbers.

When you square sqrt(-1), what do you get?

Be honest. Use math. Don't deflect by saying it's a math error.