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Mathematics
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ip6
  • Member for 9 years, 5 months
  • Last seen more than a month ago
  • London, United Kingdom
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About

BY DAY: A quantitative portfolio manager. NB : this is a personal account and all views expressed on these forums are my own. I have a PhD in theoretical physics (statistical mechanics of quantum spin chains)

FOR FUN: Sailing, writing Python programs, solving cryptic crosswords and trying to interest my kids in maths and physics.

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4
How to find : Range of $\cos(\cos x) $
May 19, 2015
answer
3
Derivation for the general cubic formula
Apr 15, 2015
answer
3
Vectors in a plane
Apr 22, 2015
answer
3
Inverting a map from a finite 3D grid to 1D
May 1, 2015
answer
2
Find $A$ if $B=A-A^T$
Feb 19, 2018
answer
2
Aliasing - Nyquist frequency
Nov 24, 2018
answer
2
Calculating components of normal to a surface
Nov 25, 2018
answer
2
Probability that none of the urns remains empty
Nov 28, 2018
answer
1
Help me understand where the factor 2 comes in, in this conformal mapping.
Apr 18, 2015
answer
1
Quadratic function with positive integral coefficients problem
Apr 23, 2015
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How to live with the frustration?
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12
In Passengers, how would it have been possible for anyone to return?
9
SF short story where animals are genetically engineered to have hands and hunt hunters with guns
5
Why diamagnetic material is not repelled?
5
Movie about a sandy planet