227 reputation
110
bio website google.com/s2/profiles/…
location London, United Kingdom
age 47
visits member for 3 years, 1 month
seen Oct 17 at 12:43

Server Side Engineering Manager

Love singing and playing games.

Have a 7 year old daughter.

All views expressed here are my own, and not those of my employer.


Jan
3
comment Does mathematics require axioms?
Once again, XKCD is relevant… xkcd.com/435
Jun
2
answered Is there a great mathematical example for a 12-year-old?
Aug
31
awarded  Yearling
Jul
4
revised How to show that $0 \times 2 = 0$?
edited body
Jul
4
revised How to show that $0 \times 2 = 0$?
added 1 characters in body
Jul
4
answered How to show that $0 \times 2 = 0$?
Jun
10
comment Prove that 16, 1156, 111556, 11115556, 1111155556… are squares.
This is quite a nice result, and worth remembering; proving that each number in the sequence is the square of a natural number by 'guessing' what number each is the square of, and proving that this is indeed true for every number in the sequence.
Nov
27
awarded  Critic
Sep
28
revised How many possible outcomes can there be in the lottery?
Make the starting steps a little more explicit.
Sep
28
comment How many possible outcomes can there be in the lottery?
I'm not chris, but I've talked through an answer without actually doing the calculation for you...
Sep
28
revised How many possible outcomes can there be in the lottery?
Minor grammatical improvements.
Sep
28
answered How many possible outcomes can there be in the lottery?
Sep
28
awarded  Quorum
Sep
28
awarded  Nice Answer
Sep
27
awarded  Suffrage
Sep
27
comment How many possible outcomes can there be in the lottery?
Actually, it isn't clear that you need to divide: the order is "relevent" (I assume this is the same as relevant)
Sep
27
awarded  Citizen Patrol
Sep
27
revised infinity wiki excerpt
added 164 characters in body
Sep
27
comment In a family with two children, what are the chances, if one of the children is a girl, that both children are girls?
So re-order the question - "in a family with two children, at least one of whom is a girl, what are the chances that the other is also a girl?" and the 1 in 3 answer might make a little more sense.
Sep
27
awarded  Tag Editor