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 Mar 31 awarded Popular Question Nov 12 comment How to show symmetrical negative definite matrix is non singular @bakula i don't believe i just missed easiest thing... thank you so much :) Nov 12 asked How to show symmetrical negative definite matrix is non singular Sep 16 accepted How to calculate $51! \ mod \ 101$? Sep 16 comment How to calculate $51! \ mod \ 101$? To be precise - I asked this question, not Jerry :) Sep 16 asked How to calculate $51! \ mod \ 101$? Sep 8 asked How to sum expressions with constant exponent Sep 6 asked Coloring of merged $C_4$ and $C_5$ graph Jul 25 awarded Famous Question Jun 17 comment Constructing any function $\{1 \dots n\} \rightarrow \{1 \dots k\}$ using functions $\{1 \dots n \} \rightarrow \{1,2\}$ Oh, okay - thank you for it then:-) Jun 17 comment Constructing any function $\{1 \dots n\} \rightarrow \{1 \dots k\}$ using functions $\{1 \dots n \} \rightarrow \{1,2\}$ It doesn't really have to be just $[N] \rightarrow [2]$ it can be any construction like: function of pair of functions, but with counterdomain $[2]$ Jun 17 asked Constructing any function $\{1 \dots n\} \rightarrow \{1 \dots k\}$ using functions $\{1 \dots n \} \rightarrow \{1,2\}$ Jun 15 awarded Popular Question Jun 1 awarded Nice Question May 3 awarded Yearling Apr 17 awarded Notable Question Apr 9 comment How to find function $f$ bounded from top by $x^\alpha$ and from bottom by $log^k(x)$ Thanks a lot Clement, this is very clever and nice solution, thanks a lot Apr 9 accepted How to find function $f$ bounded from top by $x^\alpha$ and from bottom by $log^k(x)$ Apr 9 comment How to find function $f$ bounded from top by $x^\alpha$ and from bottom by $log^k(x)$ I edited question with little detail, sorry about it, i assumed it was obvious, cause simplest example $ln^2 x > x^2$ as x goes to 0 shows it couldn't be possible. Apr 9 revised How to find function $f$ bounded from top by $x^\alpha$ and from bottom by $log^k(x)$ added 72 characters in body