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Apr
17
reviewed Approve convergent series and divergent series
Apr
16
reviewed Reject Given $\lvert \vec u \rvert, \lvert \vec v \rvert$, and $\angle(\vec u, \vec v)$, calculate $\cos \angle(\vec u + \vec v, \vec u - \vec v)$.
Apr
13
reviewed Close Please help me to solve this analysis problem.
Apr
13
reviewed Looks OK How can “$y = \sqrt{-x}$ ” be sketched on the x-y plane?
Apr
13
reviewed Close Hyperbola - the average of the angle between the tangent and the line to the focal point
Apr
13
reviewed Leave Closed Evaluate the following series using elementary methods.
Apr
4
reviewed Reviewed Model Theory, Proof Theory, Set Theory, Recursion Theory: Where to begin?
Apr
4
reviewed Reviewed Show that the Julia set of a function is a Cantor set
Apr
4
reviewed Leave Closed I need a reference in topology
Apr
4
reviewed Approve Trying to calculate the integral limit $\lim_{n\rightarrow\infty} \int_{-\sqrt n}^{\sqrt n}\left (1 - \frac{x^2}{2n}\right)^ndx$
Apr
3
reviewed Leave Closed Water Density and Fluid Force (question below)
Mar
26
reviewed Reviewed Calculus without functions (or, how did Newton differentiate?)
Mar
25
reviewed Approve Evaluating $\sum_{\gcd\left(m,n\right)=1}\frac{1}{m^2n^2}$
Mar
23
reviewed Close What is an Isomorphism: Linear algebra
Mar
22
reviewed Close Recommended topics for Chemical Engineering grad.
Mar
22
reviewed Close Mathematical Background for Computer Vision
Mar
22
reviewed Close Ray line intersection question
Mar
21
reviewed No Action Needed Taking the limit of the sum of approximating rectangles
Mar
21
reviewed Leave Open Define $f:\mathbb{R}\to\mathbb{R}$ as follows:$\ldots$
Mar
15
reviewed Leave Open How to effectively study math?