vonjd
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 Mar10 comment Examples for proof of geometric vs. algebraic multiplicity @Mario: Schaum's Theory & Problems of Linear Algebra Jan14 comment Connections between the solution of simple ordinary equation, normal distribution and heat equation Do you see a connection between the heat equation and the above ode? Both have the normal distribution as a solution, is this a coincidence? Jan14 comment Connections between the solution of simple ordinary equation, normal distribution and heat equation Thank you. Ok, I understand that but doesn't it show that the normal distribution is the simplest and in a way most natural unimodal distribution? Jan13 comment Connections between the solution of simple ordinary equation, normal distribution and heat equation Thank you, this is very helpful. What do you think about this answer: math.stackexchange.com/a/1100063/346 Jan11 comment Connections between the solution of simple ordinary equation, normal distribution and heat equation Well, no, I think it is still helpful! Please keep it! It would be great if you could find the connection between the diffusion equation and the above ode :-) Jan11 comment Connections between the solution of simple ordinary equation, normal distribution and heat equation What do you think about this answer: math.stackexchange.com/a/1100063/346 ? Jan11 comment Connections between the solution of simple ordinary equation, normal distribution and heat equation What do you think about this answer: math.stackexchange.com/a/1100063/346 ? Jan11 comment Connections between the solution of simple ordinary equation, normal distribution and heat equation @abel: No, not necessarily, but see answer here: math.stackexchange.com/a/1100063/346 Jan9 comment Connections between the solution of simple ordinary equation, normal distribution and heat equation "it seems like there should be something deeper and more 'physical' than that" - I feel the same way! Thank you Jan8 comment Connections between the solution of simple ordinary equation, normal distribution and heat equation @Chinny84: I do, but I don't see the connection between this pde/ the normal distribution and the above simple ode. Jan7 comment Connections between the solution of simple ordinary equation, normal distribution and heat equation @Evgeny: This sounds very promising - could you formulate an answer? Thank you :-) Jan5 comment Can a differential equation be linear or nonlinear at the same time? @GitGud: My point is not that both differential equations share the same solution but that both differential equations are essentially the same! Jan4 comment Geometric interpretation of determinant of a system of homogenous linear equations @Bernard: But that is what I wrote: They are linearly dependent?!? Jul24 comment What are some conceptualizations that work in mathematics but are not strictly true? That is better :-) Jul24 comment What are some conceptualizations that work in mathematics but are not strictly true? But you didn't say that a line has to be straight. Jul24 comment What are some conceptualizations that work in mathematics but are not strictly true? Whether this is true or not depends on the axiomatic system and how you define "line". May22 comment What's going on in Ito calculus? Could you tell us which books did you find and what exactly is missing there? May15 comment Example for finite dimensional analog of integral transforms I tried this with Mathematica and the vector $\{1,2,3,4,5\}$. The result after multiplying with $B(z)$ and transforming back should be $\{1,1,1,1,1\}$ because these are the first differences, right? (I am not sure about the last one, but anyway). Interestingly after multiplying with $B(z)$ I get $\{1,2,3,4,5\}$ and transforming this back gives the discrete delta function times $\{1,2,3,4,5\}$: wolframalpha.com/input/… - what's wrong?!? May15 comment Example for finite dimensional analog of integral transforms This is exactly what I was looking for! Thank you very much indeed! :-) May14 comment Example for finite dimensional analog of integral transforms @MattL. Ok, I tried this with vectors but there are still things that don't work out :-( If you gave me an example with the z-transform on vectors where multiplication/division becomes differentiation/integration I would happily accept your answer :-) Thank you