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 Feb 19 accepted Calculating the capacity of a Binary Channel? Feb 18 comment Calculating the capacity of a Binary Channel? Can you elaborate a bit more in the way of obtaining $C$ from taking the maximum of $H(Y)-h(p)$? By the way, I got $H(Y)$ instead of your $H(X)$. Feb 16 comment Calculating the capacity of a Binary Channel? @leonbloy If I understood correctly, I have to calculate $I(x:y)$, where $x$ is one input bit and $y$ is one output bit. So, doing the calculations I get $I(x:y)=I(x)+I(y)-I(xy)=1/2+1/2-[1/2-q\log_2 q-(1-q)\log_2(1-q)]$. This is almost your $C$, but I got an extra $1/2$ in the joint $I(xy)$. What would it be? Feb 15 asked Calculating the capacity of a Binary Channel? Feb 15 comment Conditional probability between two random vectors: input and output of a channel. @Cornelis And how can I write $P(Y|X)$ in terms of $P(y_i|x_i)$? Feb 15 comment Conditional probability between two random vectors: input and output of a channel. @sinbadh Yes, each $y_k$ depends only in its corresponding $x_k$. Feb 15 asked Conditional probability between two random vectors: input and output of a channel. Feb 10 accepted How fast was the Turing's machine for breaking the enigma code? Oct 28 awarded Tumbleweed Oct 18 revised How to interchange a sum and a product? edited body Oct 15 awarded Popular Question Sep 28 awarded Popular Question Sep 23 awarded Popular Question Jul 13 comment Mathematics Article Collection Books for Talented High School Students @MariusKempe Are these recommended by V. I. Arnold? Jun 8 comment Dirac delta function with a sum as the argument This answer is "2-good". BTW do you know any book containing all the tricks involving the Dirac delta function? @anon Jun 8 accepted Dirac delta function with a sum as the argument Jun 5 comment Dirac delta function with a sum as the argument @anon You say that because it will solve the transition between 2 and 3 or because you made the change of variables to obtain 2 from 1? Jun 5 revised Dirac delta function with a sum as the argument Adding an important thing to notice. Jun 5 asked Dirac delta function with a sum as the argument Apr 14 revised Method of solving no-homogeneous recurrence equation Adding details