what math equations can you come up with?

[cppnerd]

I came up with:

p1+p2=n²
p1+p2=n³
n⁴=n²

[LB]

http://math.stackexchange.com/

[thebeto1of]

tan(a) + tan(b) + tan(c) = tan(a)tan(b)tan(c)

e^πi + 1 = 0

[giblit]

cppnerd wrote:

n⁴ = n²

when will this ever be true?

Anyways, for the kicks. A = Pe^rt

[Disch]

when will this ever be true?

it's true for n=1, n=-1, n=0

[giblit]

Good call, I was over thinking like n = 2, 10, 11 ect...

[a k n]

Γ = 0

Every equation , for some appropriate Γ.
_{I like Gamma}

[Ganado]

I like the solution to x = e^x, the fixed point of f(x)=e^x.
It's the complex number you get by taking the natural log of any number (other than 1 or 0) an infinite amount of times.

[cppnerd]

2⁴4²

( a solution to n⁴=n² )

[Albatross]

i² = -1

-Albatross

[giblit]

2⁴4²

( a solution to n4=n2 )

That wouldn't work since n == n but as Disch mentioned I over looked 1, -1 and 0.

[Norm Gunderson]

i² = -1

I wish I'd seen this when I first started learning about imaginary numbers:

http://acko.net/blog/how-to-fold-a-julia-fractal/

and specifically the one quote that really opened my mind:

all numbers are imaginary

[LB]

Huh? All numbers are complex, not imaginary. Imaginary numbers are those which are multiples of the square root -1

[Norm Gunderson]

Imaginary as in a figment of your imagination.

What is presented in that article is the best description I've seen for what it actually means for a number to be the square root of -1. But maybe I've just lived a sheltered mathematical life.

Anyway, the answer to the riddle i² = -1 is i = (1, 90^o)

[helios]

That's not a riddle, it's just the definition of i.

[LB]

It's not nice to use multiple meanings of a word in close context without saying you're doing so.

[Norm Gunderson]

That's not a riddle, it's just the definition of i.

True, but to a mathematical dunce like me, the definition of i is itself quite confusing, and hence has the appearance of a mathematical riddle.

It's not nice to use multiple meanings of a word in close context without saying you're doing so.

You're quite right, that was a bit misleading - sorry about that.

[Cody0023]

4=x+x

[giblit]

Fun fact: If you take any electronic classes then i will be called j so it is not confused with current.

[Ganado]

i will be called j so it is not confused with current

Yay for Electrical Sine wave engineering ;0