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How to solve cubic and quartic equations 29/04/2009 - 19:14 12 years 4 weeks ago
If you don't know how to make a decision, then don't make it 29/04/2009 - 19:20 12 years 15 weeks ago
If you are calculating an integral, complex substitutions are not forbidden 30/04/2009 - 10:14 6 years 4 weeks ago
Shift the contour of integration 30/04/2009 - 18:36 12 years 15 weeks ago
As a first approximation, neglect lower order terms 30/04/2009 - 19:02 12 years 15 weeks ago
To show that a group element is non-trivial, show that it has a non-trivial action or image 30/04/2009 - 19:31 12 years 14 weeks ago
If a parameter is generating undesirable boundary terms, try averaging over many choices of that parameter 01/05/2009 - 00:43 12 years 15 weeks ago
Complex analysis front page 01/05/2009 - 12:57 12 years 14 weeks ago
To calculate a contour integral, use theorems rather than direct calculation 01/05/2009 - 18:21 12 years 15 weeks ago
When controlling an oscillatory integral, bump functions and bounded phase corrections are not very important 02/05/2009 - 00:52 12 years 15 weeks ago
If your topological invariant takes integer values, they may well be homology classes in disguise 02/05/2009 - 09:25 12 years 14 weeks ago
Use the compactness and contradiction method to derive finitary quantitative results from infinitary qualitative ones 02/05/2009 - 19:30 12 years 15 weeks ago
How to solve problems about finite groups 03/05/2009 - 03:37 12 years 15 weeks ago
How to solve problems about discrete groups 03/05/2009 - 03:39 12 years 15 weeks ago
Modeling 04/05/2009 - 13:54 12 years 15 weeks ago
Dimensional correctness and scaling 04/05/2009 - 14:11 12 years 14 weeks ago
Applied mathematics 04/05/2009 - 14:27 12 years 14 weeks ago
Numerical analysis front page 04/05/2009 - 17:45 12 years 14 weeks ago
Use Occam's razor 04/05/2009 - 17:53 12 years 15 weeks ago
If an argument looks promising but needs a hypothesis, assume the hypothesis for now but try to remove it later 04/05/2009 - 21:41 12 years 14 weeks ago
A non-trivial circular argument can often be usefully perturbed to a non-circular one 05/05/2009 - 00:30 10 years 28 weeks ago
Irrationality and transcendence front page 05/05/2009 - 10:44 12 years 14 weeks ago
To prove that a number is irrational, show that it is almost rational 05/05/2009 - 10:44 11 years 25 weeks ago
Numerical linear algebra 05/05/2009 - 13:46 12 years 12 weeks ago
Numerical integration and differentiation 05/05/2009 - 14:13 12 years 14 weeks ago