# mastergoo

 Apr 19 accepted Which sides of a triangle are visible to an observator? Apr 16 revised Which sides of a triangle are visible to an observator?Just the problem Apr 15 comment Which sides of a triangle are visible to an observator?Ok, it is a part of a problem that I'm trying to solve here. There is a naive solution in \$n^4\$, the reduction to \$n^3\$ needs to do this check. Apr 15 comment Which sides of a triangle are visible to an observator?Will it work even with convex poligons? Apr 15 comment Which sides of a triangle are visible to an observator?Very interesting method. Apr 14 asked Which sides of a triangle are visible to an observator? May 22 awarded Popular Question Nov 11 awarded Scholar Nov 11 accepted How to understand this circuit? Nov 11 awarded Supporter Nov 11 comment How to understand this circuit?Really helpful, best answer ever. Thank you. I guess the main problem for me is the bad interpretation of the picture. Nov 10 awarded Student Nov 10 awarded Custodian Nov 10 reviewed Approve suggested edit on How to understand this circuit? Nov 10 reviewed Approve suggested edit on How to understand this circuit? Nov 10 reviewed Approve suggested edit on How to understand this circuit? Nov 10 awarded Editor Nov 10 revised How to understand this circuit?edited body Nov 10 comment How to understand this circuit?Wow, sorry, It is (30/11 + 1)k. Nov 10 comment How to understand this circuit?Ok, sorry Adam, the picture is ambiguous.