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Nov
23
revised How did he went from $b_{12}$ to $\tan 2\varphi=\cfrac{2a_{12}}{a_{11}-a_{22}}$?
deleted 2 characters in body
Nov
21
revised On a non-standard approach to the classification of conics?
deleted 1 character in body
Nov
13
revised Archimedean integration of $x^3$?
deleted 174 characters in body
Nov
13
revised Archimedean integration of $x^3$?
added 2 characters in body
Oct
12
revised Is my proof of $-(-a)=a$ correct?
rolled back to a previous revision
Sep
30
revised How to go from $d= \left(\frac{A\cdot B}{B\cdot B} B,A \right)$ to $d=\frac{|A\cdot B|}{|B|}$?
added 757 characters in body
Sep
2
revised Given the tetrahedron $OABC$, find a condition on $a OA+ b OB + c OC$ such that this is always inside $ABC$.
added 22 characters in body
Aug
26
revised Is it possible to find the criminal with graph-theoretic methods?
added 13 characters in body
Aug
25
revised Is it possible to find the criminal with graph-theoretic methods?
added 626 characters in body
Aug
18
revised On the inner workings of induction?
added 64 characters in body
Aug
18
revised On the inner workings of induction?
added 305 characters in body
Aug
17
revised What's the purpose of this unknown (financial) math formula?
added 2 characters in body
Aug
9
revised Simple Derivative plus tricky algebraic expression to simplify?
added 8 characters in body
Aug
9
revised Bridge between High School Mathematics and University-level Mathematics?
added 223 characters in body
Aug
9
revised Bridge between High School Mathematics and University-level Mathematics?
added 190 characters in body
Aug
9
revised Bridge between High School Mathematics and University-level Mathematics?
added 361 characters in body
Aug
3
revised How do I express logical connectives with Nand?
added 172 characters in body
Aug
2
revised How do I express logical connectives with Nand?
added 170 characters in body
Jul
17
revised Why $\frac{1}{9}$ becomes $\frac{1}{3}$ in $\frac{1}{3} \int \frac{1}{s^2+1} \, ds$?
added 566 characters in body
Jul
6
revised Is it a good practice to write this integral in this form?
added 22 characters in body