Sasha
Reputation
54,210
90/100 score
 Apr 27 answered Find a recurrence relation for a retirement account with an initial deposit of $1000 and 3% interest per year Apr 26 comment Some Kind of Generalized Brownian Motion A time-changed Brownian bridge? Apr 25 comment Periodic solution to DDE:$\frac{d}{dt}x(t)+\left(\frac{\pi}{2}+\epsilon\right)x(t-1)[1+x(t)]=0$I think it is of value to provide the reference. The community is large and is not limited to native English speakers. Apr 17 answered What is probability that at least$2$people have same birthday from group of$N$people? Apr 16 comment What is distribution of ratio of two gamma function @statquant Iverson bracket is an indicator:$x \mapsto [x \elem A]$is a function equal to 1 whenever$x$is a member of set$A$and zero otherwise. As far as I know Kronecker is a special case when domain of the function is a set of integers and$A$is one element set. Apr 15 answered What is distribution of ratio of two gamma function Apr 14 revised Line integration of$\tanh(z)$edited title Apr 14 comment Marginal Order Statistics Given$y_3$and$y_4$the range of values of$y_2$is determined by$ 0 \leqslant y_2 \leqslant y_3$. For given value of$y2$,$y_3$and$y_4$the range of values of$y_1$is determined by$ 0 \leqslant y_1 \leqslant y_2$. Does it make sense? Apr 14 answered Marginal Order Statistics Apr 13 answered How to calculate the sum:$\sum_{n=1}^{\infty} \frac{1}{n(n+3)}$? Apr 12 answered Calculate$(\Delta^2+\Delta-2)^{-1} (n^3+1)$Apr 10 revised Sampling 3 out of 20 numbered balls from a box, what is distribution of max number drawn? deleted 48 characters in body Apr 10 revised Sampling 3 out of 20 numbered balls from a box, what is distribution of max number drawn? added 813 characters in body Apr 10 answered Sampling 3 out of 20 numbered balls from a box, what is distribution of max number drawn? Apr 9 comment Computation of n-step transition matrix : method of matching coefficients No, it would 11 component of the P^2 Apr 8 answered Computation of n-step transition matrix : method of matching coefficients Apr 7 comment Finding a PDF for a two variable function$W = X - Y$It should be$\Pr(X \leqslant w_0 + Y) = \int_0^1 \int_{0}^{\max(0, \min(1, y+w_0))} \mathrm{d}x \mathrm{d}y\$ Apr 7 revised Relationship between eigenvectors of correlation and covariance matrices deleted 285 characters in body Apr 7 revised Relationship between eigenvectors of correlation and covariance matrices added 289 characters in body; edited title Apr 7 revised Relationship between eigenvectors of correlation and covariance matrices added 66 characters in body