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Jan
27
awarded  Generalist
Jan
5
comment What is the geometric interpretation of the transpose?
@mcb You need to read the rest of the sentence - "can be regarded as a rotation to a new basis, then scaling in this new basis, and finally rotating back to the new basis". The effect of the two rotations cancels out, and the net effect is just a scaling (the magnitudes of the scaling are described by the eigenvalues of the symmetric matrix).
Dec
17
awarded  Yearling
Dec
15
revised Simulation of 2-dimensional Brownian motion
added 1 character in body
Dec
1
comment Amount become $9$ times in $12$ years at Compound interest. In what time it will become $27$ times
Try taking the square root of both sides.
Nov
30
revised Particular case of a differential equation
added 3 characters in body
Nov
11
awarded  Good Answer
Oct
21
awarded  Nice Answer
Oct
12
comment negative number divided by positive number, what would be remainder?
@neolivz4ever But only two where the absolute value of the remainder is less than the divisor - sure, you can write 13 = 1 x 5 + 8 but no one thinks that is a justification for saying that 8 is the remainder after dividing 13 by 5. Look, you have one convention, and almost everyone in the world has a different convention. You can either admit that there are multiple valid conventions, or you can continue to pointlessly insist that you are right and the rest of the world is wrong. There is no interesting discussion to be had in either case.
Oct
10
comment negative number divided by positive number, what would be remainder?
@neolivz4ever As I and many others said, there are multiple conventions on how the quotient is rounded. You are free to use your own convention, but that won't stop other people using a different one!
Jul
10
comment Functions that are their own inversion.
@user121330 Phrases like "it's easy" and "it's trivial" are common mathematical parlance. Like a lot of mathematical language, they have a slightly different meaning to their common English meaning. In particular, when someone describes something as "easy" or "trivial" they often mean that it can be done without introducing significant new ideas, or without requiring a sudden flash of insight. In particular, a calculation or derivation taking many pages of routine algebraic manipulation can be described as "trivial" even though most non-math people would say it is hard.
Jun
19
awarded  Notable Question
Jun
14
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May
31
awarded  Nice Answer
May
16
awarded  Popular Question
Apr
28
awarded  Popular Question
Apr
3
awarded  statistics
Mar
28
awarded  Nice Question
Mar
1
awarded  Good Answer
Feb
14
revised Approximating the logarithm of the binomial coefficient
added 214 characters in body