[Question] Square root of -1

[IanF]

I have been told this is I.
Can someone help with the logic behind this.

[BusFact]

A vague recollection was it being a "number" (or concept) on it own. So basically the square root of -1 = square root of -1.
Its simply given the symbol "i".
So "i" represents the square root of minus one.

[vieome]

I have been told this is I.
Can someone help with the logic behind this.

The sqaure root of -1 is actually 1(i) the (i) shows us that it is a complex number. such that (i)=-1

Square roots of negative numbers are beyond the range of real numbers hence we use complex numbers which have (i) as part of its form.

e.g sqaure root of 9 = 3 as 3*3 = 9
square root of -9 = 3 as 3 * 3 * (i) where (i) = -1

[IanF]

Thanks guys we made some coasters with the joke

I couldn't get the square root part

[IanF]

Pic of the coaster

[BusFact]

Lol. Who's the customer? The local Maths conference?

[IanF]

The I = Imaginery number that is what I have been told .
The coasters are for a maths teacher I hope she understands.

[wynn]

You got beaten to the punchline!!