20181111  20181217 
[+ntrRGSC] welcome to #maths; ask your math question : problem of the week: http://i.imgur.com/4nPFeWn.png answer to last week's problem: S = (3, 2, 1) 

20150518  20181111 
[+ntrRSCG] welcome to #maths; ask your math question : problem of the week: http://i.imgur.com/4nPFeWn.png answer to last week's problem: S = (3, 2, 1) 

20151222  20160109 
[+ntrRSCNG] welcome to #maths; ask your math question : problem of the week: http://i.imgur.com/4nPFeWn.png answer to last week's problem: S = (3, 2, 1) 

20151129 (18:09:58  18:09:58) 
[+nt] 

20150502  20150518 
[+ntrRSCG] welcome to #maths; ask your math question : problem of the week: construct this parallelogram: http://i.imgur.com/OpJvWQl.png  answer to last week's puzzle: Cheryl's birthday is july 16 

20150425  20150502 
[+ntrRSCG] welcome to #maths; ask your math question : problem of the week: http://www.sciencealert.com/images/articles/MathsProblem_768.jpg ; answer to last week's puzzle: the longest sequence is 5,11,17,23,29 

20150406  20150425 
[+ntrRSCG] welcome to #maths; ask your math question : problem of the week: what is the longest sequence of prime numbers such that each number differs by six from its predecessor? 

20150406 (04:34:00  16:34:06) 
[+ntrRSCG] welcome to #maths; ask your math question : problem of the week: what is the longest sequence of prime numbers such that each number differs by six from its predecesor? 

20150404  20150406 
[+ntrRSCG] welcome to #maths; ask your math question : problem of the week: you check into a hotel that has a countably infinite number of rooms, all of which are full; how can hotel staff make room for you? the answer to last weeks problem is : distance= 909 km 

20150309  20150404 
[+ntrRSCG] welcome to #maths; ask your math question : problem of the week: an observer on the ground spots the International Space Station flying over. when the station is 22.5 degrees above the horizon, how far away is it? assume ISS orbit=400 km altitude, Earth radius=6371 km. answer to last week's: 1.25 degrees 

20150221  20150309 
[+ntrRSCG] welcome to #maths; ask your question. problem of the week: a gun fires a projectile at 2200 ft/s muzzle velocity at a target 2.0 km away, at the same altitude; neglecting wind, what angle above the horizon must you aim, to hit the target? acceleration due to gravity is 9.8 m/s^2. answer to last week's: yes 

20150209  20150221 
[+ntrRSCG] welcome to #maths; got a math question? ask it  problem of the week: given three bowls of marbles, all black, all white, and mixed; each has an opaque lid labelled "black", "white", or "mixed"; someone switched the lids, now all labels are wrong. can you lift just one lid to find the correct labellings? 

20150209 (11:39:14  17:39:16) 
[+ntrRSCG] welcome to #maths; do you have a math question? ask it  problem of the week: you have three bowls of marbles, all black, all white, and mixed; each bowl has a lid that you cant see through, and a label "black", "white", and "mixed"; but someone switched the lids around, so that all the labels are wrong. 

20150127  20150209 
[+ntrRSCG] welcome to #maths; do you have a math question? ask it  problem of the week: find the centre of mass (given uniform density) of a right isosceles triangle whose long side is length A 

20150121  20150127 
[+ntrRSCG] welcome to #maths; do you have a math question? ask it  problem of the week: you have a tetrahedron for which two of the faces are congruent. what can you say about the other two faces? 

20150120  20150121 
[+ntrRSCG] do you have a math question? ask it  problem of the day: you have a tetrahedron for which two of the faces are congruent. what can you say about the other two faces? 

20150119 (18:18:41  23:18:44) 
[+ntrcG] do you have a math question? ask it  problem of the day: you have a tetrahedron for which two of the faces are congruent. what can you say about the other two faces? 

20150119 (10:18:38  17:18:41) 
[+ntr] do you have a math question? ask it  problem of the day: you have a tetrahedron for which two of the faces are congruent. what can you say about the other two faces? 

20150118  20150119 
[+ntr] do you have a math question? ask it  problem of the day: find the intersection of two circles, first circle is 4 units diameter centred at origin, second is 0.625 diameter centred at x=1.75 

20150118 (09:18:33  09:18:33) 
[+ntr] 