# mathjacks

Top Questions

## Describe the Riemann surface for $w=z^2-1$.

asked Dec 9 '14 at 3:46

## Prove or disprove “If at least 10% of an option's value is time value, it has a delta less than 90”

asked Aug 16 '12 at 1:37

## Compute $\lim_{x \to 0} \frac{\sin(x)+\cos(x)-e^x}{\log(1+x^2)}$.

asked Nov 27 '14 at 20:37

## Suppose $dX_t = a(X_t) dt + b(X_t) dW_t$ and $Y_s=X_t$ where $s=t^2$. What SDE does $Y_s$ satisfy in the weak sense?

asked Dec 10 '15 at 1:21

## Prove if $a$ is a nonnegative real number and $n$ is a positive integer, there exists a $b \geq 0$ such that $b^n = a$

asked Oct 18 '14 at 15:08

## Sequence of $f_n \in R[0, 1]$ that converges pointwise to $f \in R[0, 1]$ such that $\lim_{n \to \infty} \int_0^1 f_n dx \neq \int_0^1 f dx$.

asked Nov 26 '14 at 3:07

## Show the level curves of $\log|f(z)|$ are orthogonal to those of $\operatorname{arg}(f(z))$.

asked Dec 8 '14 at 18:53

## Prove $(\overline{A \cap B}) \subseteq \overline{A} \cap \overline{B}$.

asked Feb 15 '15 at 22:24