vonjd

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2,090 reputation
1324
bio website ephorie.de
location Germany
age 43
visits member for 2 years, 10 months
seen 3 hours ago
stats profile views 195

just an amateur fascinated by math


86 Posts

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17h
 answered Probability problem
Apr
10
 answered Eigenvectors and Principal component
Apr
9
 answered Rewriting the integral $\mathrm{erf}(x) = \frac{1}{\sqrt{\pi}} \int_{-x}^x e^{-t^2} dt.$
Apr
1
 answered Interpret the equation $17+28y+4x^2+4y^2=8x$ geometrically
Mar
12
 asked Birthday paradox: Comparing the original version with the same-birthday-as-you version
Mar
7
 asked How to prove that the limit is max(0,x)?
Feb
6
 answered What is more elementary than: Introduction to Stochastic Processes by Lawler
Feb
6
 asked Ito formulas for stochastic processes with finite cubic, quartic … n-tic variation
Oct
21
 asked How to round 0.4999… ? Is it 0 or 1?
Jul
15
 asked Average run lengths for large numbers of trials: Intuition and proof
May
11
 answered How are eigenvectors/eigenvalues and differential equations connected?
May
11
 asked Differential equations: Connection between repeated roots of characteristic equation and generalized eigenvectors
May
4
 asked Algorithms for finding closed form approximations for integrals (with no closed form solutions)
Jan
24
 asked Integral paradox: Deterministic integral interpreted as limiting case of stochastic integral
Nov
20
 answered Why is the derivative multiplication by frequency in Laplace transform?
Oct
6
 asked Algorithm for optimizing width length of classes of an ordered list of data points under certain conditions
Sep
25
 asked How to verify that the average is really a simple calculation?
Sep
22
 asked How to calculate the expected value when betting on which pairings will be selected
Aug
8
 answered What do $\pi$ and $e$ stand for in the normal distribution formula?
Aug
7
 answered What do $\pi$ and $e$ stand for in the normal distribution formula?
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