Google's latest animated Doodle celebrates the quadratic equation, transforming its homepage into an interactive classroom.

We can calculate the gradient of a tangent to a curve by differentiating. In order to find the equation of a tangent, we: Differentiate the equation of the curve Substitute the \(x\) value into the ...

This is a preview. Log in through your library . Abstract We prove that the Eynard-Orantin symplectic invariants of the curve xy — y2 = 1 are the orbifold Euler characteristics of the moduli spaces of ...