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1d
comment Simple everyday math
Do you use a smartphone or a tablet Tom? There might be apps which would give you something similar. Dragonbox algebra is supposed to be good (I've never tried it), but it might be a bit childish.
1d
reviewed Approve suggested edit on Integration of $x^a$ and Summation of first $n$ $a$th powers
1d
reviewed Approve suggested edit on Why is this not a category?
1d
reviewed Reject suggested edit on invariance properties of lebesgue integration on any mesurable set
2d
comment Exercise in Erdmann's Intro to Lie algebras
@ChrisBirkbeck The book is by Erdmann and Wildon, and Erdmann is a she.
Nov
19
comment Partial generalisation to Whitehead's second Lemma
Then isn't this just isomorphic to $\mathfrak{g} \otimes V$? The skew symmetric elements of $(\mathfrak{g} \otimes V) \oplus( V \otimes \mathfrak{g})$ are spanned by those of the form $(x\otimes y,-y\otimes x)$ and you may project this onto the first coordinate to get an iso with $\mathfrak{g}\otimes V$.
Nov
18
comment Partial generalisation to Whitehead's second Lemma
What does $g \wedge V$ mean?
Nov
14
reviewed Reject suggested edit on Prove $\int_0^\infty \frac{\ln \tan^2 (ax)}{1+x^2}\,dx = \pi\ln \tanh(a)$
Nov
14
reviewed Approve suggested edit on Dice rolling 6 times, conditional expectation problem
Nov
13
reviewed Approve suggested edit on find limit of sequence given by recurrence
Nov
13
reviewed Approve suggested edit on Find the maximum value of the expression
Nov
13
reviewed Approve suggested edit on Subset proper subset proof help in discrete math
Nov
7
comment If $f$ is continuous on $[0,1]$ and if $\int_0 ^1 f(x) x^n dx = 0$ for $n=0,1,2,3,\cdots$; then prove or disprove $\int _0 ^1 f^2(x) dx = 0$
closely related to math.stackexchange.com/questions/16831/…
Nov
6
reviewed Approve suggested edit on How prove there exsit $f''(\xi)=\dfrac{1}{8}$
Nov
6
reviewed Approve suggested edit on polynomial equation results is not matching
Nov
5
reviewed Approve suggested edit on Critical point of $x - 5x^{\frac{1}{5}}$
Nov
5
reviewed Approve suggested edit on Book recommend for topics of Integrals in multivariable calculus.
Nov
4
reviewed Approve suggested edit on Probability density function $\cos(x)\cos(y)$
Nov
4
reviewed Reject suggested edit on Find $\lim_{x \to 0^+}x\int_x^1 \frac{\cos t}{t^2}\,dt$
Nov
4
reviewed Approve suggested edit on Elementary fact about positive integers and rational numbers