130 reputation
15
bio website
location Århus, Denmark
age 27
visits member for 3 years, 3 months
seen Nov 24 at 9:13

Jun
23
awarded  Enthusiast
Jun
14
comment The role of 'arbitrary' in proofs
That is, we are not assuming anything beyond that which we explicitly state.
Jun
11
comment What is integration by parts, really?
Welcome to economics 101. Society's utility from your answer is a function of the demand as well as the quality. ;-)
May
7
comment Improving concentration and stamina when solving difficult problems.
@JackM: I disagree. He is asking about fatigue, not laziness. Fatigue comes from hard work. If he had been lazy, he would not have worn himself out.
Apr
5
comment Feynman/Einstein/etc and Basic Maths
My comment was on the first part of your answer. Yes, some people do in deed perform all basic arithmetic in their heads.
Apr
2
awarded  Critic
Apr
2
comment Feynman/Einstein/etc and Basic Maths
There are a number of competitions in mental arithmetic where people compete at a very high level, using special techniques. A specific mathematician may not know about these techniques but they certainly exist.
Mar
6
comment Can I use the “Secretary Problem” to find the worst candidate, too?
I think I expressed myself incorrectly. What I was trying to convey was that you cannot assume something always works, just because you can't think of a counterexample.
Mar
4
comment Can I use the “Secretary Problem” to find the worst candidate, too?
There is a useful lesson here: When you have an algorithm or a theorem involving an ordering, it usually works for the opposite ordering too (though not always).
Oct
10
answered integer sequences
Oct
3
awarded  Editor
Oct
3
revised Frequency on doing exercises in learning Calculus & Linear Algebra & Probability and so on
deleted 1 characters in body
Oct
2
awarded  Revival
Aug
26
awarded  Teacher
Jun
28
comment suggest textbook on calculus
@Ben Crowell: Do you usually pay for the number of pages? I would argue that paying by the page is the reason many textbooks from american publishers are bad.
Jun
28
answered Frequency on doing exercises in learning Calculus & Linear Algebra & Probability and so on
Aug
21
awarded  Supporter