Name of the formula phi cos²θ + phi sin²θ

[agermany]

Hi all, 'Im a newbie in physics. Studying the laws of wave mechanics and vectors. I ran across this formula "phi cos^2 + phi sin/^2".

I lost the source. Does anyone know its name? Thank!

Alicia

 

[DennisN]

"phi cos^2 + phi sin/^2"

Looks weird to me. Are you sure you don't mean cos^2 (phi) + sin^2 (phi), that is cos²(phi) + sin²(phi) ?

 

[agermany]

Positive! I am working with wave equations relative to interdimensional travel. Cant find the site where I ran across this one. It's not a variant of Euler's. I think the Phi symbol was substituted in for a partial derivative somewhere.

 

[DennisN]

Ok. I have no clue - the notation looks weird to me, I'm not familiar with it. I don't understand what cos^2 and sin/^2 means at all -there are no variables present in those expressions...

 

[Vanadium 50]

We can't explain an incomplete equation from a dubious and misremembered source. Nobody can.