Reputation
3,301
Next privilege 5,000 Rep.
Approve tag wiki edits
Badges
12 30
Newest
 Nice Answer
Impact
~74k people reached

Jan
4
revised how to show that a function is unbounded?
typos
Jan
4
revised Solving $2x^2 \equiv 7 \pmod{11}$
latex
Jan
4
revised Three digit number $ABC$ with $ABC = A + B^2 + C^3$
python code
Jan
4
revised Three digit number $ABC$ with $ABC = A + B^2 + C^3$
changed estimation technic, added solutions with A=0
Jan
3
answered Three digit number $ABC$ with $ABC = A + B^2 + C^3$
Jan
3
comment Three digit number $ABC$ with $ABC = A + B^2 + C^3$
I suppose the equation is wrong, because $ABC$ means $A\times B \times C$. The first trick is to write $$100A+10B+C=A+B^2+C^3$$
Jan
3
revised Is $\text{Trace}(e^{XA+A^TX})$ a convex function of X?
latex
Jan
3
reviewed Reject Evaluating $\int_0^\infty \frac{x\sin x}{1+x^2}$ using contour integration?
Jan
3
reviewed Approve Relation between determinant and matrix rank
Jan
3
reviewed Reject Number of factors of a big number
Jan
3
reviewed Reject Modulo of a negative number
Jan
3
reviewed Approve Number of factors of a big number
Jan
3
reviewed Reject Modulo of a negative number
Jan
3
reviewed Approve Number of Infinities in complex numbers
Jan
3
reviewed Reject Number of $0$ in great number
Jan
3
comment questions about probabilistic primality test
Which online Rabin-Miller test do you use? Can you provide the link?
Jan
3
comment How to show result in terms of $\pi$ in Mathcad?
@Rory Daulton: No, it is absolutely on topic to pose a question about Mathcad. If it is a question about Mathcad it does not make sense to change it in a question about anything else. I think the post is about symbolic calculation in Matchcad.
Jan
3
reviewed Approve Question of difficult matrix problem, minimum number of times
Jan
3
revised How does (wikipedia's axiomatization of) intuitionistic logic prove $p \rightarrow p$?
line numbers instead of bullets, makes iteasier to reference
Jan
2
revised Is $1234567891011121314151617181920212223…$ an integer?
removed the invalid "the number" in title