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    Formula for entropy conditional on >1 variables?

    I worked through it again and discovered an error or two in my calculations. In the end it looks like H(A|B,C) = H(A,B,C) - H(B,C) is correct after all. This is quite clear when illustrated with a Venn diagram similar to the one...
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    Formula for entropy conditional on >1 variables?

    Hello, I want to compute the conditional entropy H(A | B,C), given probability distributions for each of the variables. It would be nice to have a right-hand side not involving conditionals. H(A|B) = H(A,B) - H(B) but how does it work out if there are more than one conditional variable...
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    Why assume a solution in exponential form?

    Thanks for the answers. quasar987, that makes sense! I lacked that intuition. symbolipoint, I played around with your suggestion, and for one thing realized that while an interest rate r gives exponential growth of your cash thanks to dx/dt = (1+r)x (or rather a discrete-time version of...
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    Why assume a solution in exponential form?

    Hello Physics Forums, I sometimes come across statements like this (from http://beige.ucs.indiana.edu/B673/node62.html" ): [FONT="Courier New"]Now assume a solution of the following form: x(t) = Aeat What is the motivation/background to make such an assumption? In this case the equation...
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