Apparently, this user prefers to keep an air of mystery about them.
2 Let $f(x,y)=x+y^2$ and $P = (1,1)$. Find a unit vector $u$ such that the directional derivative $D_uf(x,y)$ is zero. sep 25 '12
2 How to visualize triple integrals? oct 28 '12
2 Does the series converge or diverge? jun 23 '12
1 Find the volume of the solid under the plane $x + 2y - z = 0$ and above the region bounded by $y=x$ and $y = x^4$. oct 27 '12