Apparently, this user prefers to keep an air of mystery about them.
3 Is the function linear? nov 12 '12
2 for $\epsilon\gt0$ find $\delta_\varepsilon\gt0$ such that $\left|x-x_0\right|\lt\delta_\varepsilon\Rightarrow \left|f(x)-f(x_0)\right|<\varepsilon$ nov 30 '12
2 Understanding linear vector subspaces nov 9 '12
1 Eigenvector of A to given Eigenvalue which requires row swapping to get reduced echelon form jan 6 '13
1 Getting a feel for the transformation A on vector x which lies outside of any eigenspace jan 15 '13
1 Prove $2^n > n^3$ [duplicate] oct 7 '11