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 Apr10 asked Clarification about second order Linear ODE with constant coefficients Mar10 comment Prove that the limit doesn't exist @BrianDing Have you guessed and were you so lucky or have you followed a proceeding like Kristoffer's one? :) Mar10 accepted Prove that the limit doesn't exist Mar10 comment Prove that the limit doesn't exist oh, it's very interesting! I didn't think to set some values for b and c... so many thanks! Mar10 asked Prove that the limit doesn't exist Feb23 awarded Tumbleweed Feb16 accepted Prove the relation related to this Fourier Transformate Feb16 comment Prove the relation related to this Fourier Transformate wonderful! and what about the proof that $\hat{f}(p)$ is real? Feb16 asked Prove the relation related to this Fourier Transformate Feb16 revised Convolution, clarification about exercise deleted 1 character in body Feb16 asked Convolution, clarification about exercise Feb8 accepted Convolution and absolute value Feb8 comment Convolution and absolute value It is very clear, thanks a lot! Feb3 comment Convolution and absolute value I've already obtained the correct result with the Inverse Fourier transformation but I have to verify it by calculating the convolution :( and I don't know how to do it :( Can you help me? Many thanks again Feb3 comment Convolution and absolute value I'm sorry, I have the table full of sheets but I haven't deeply understood what I have to do... Please, give me an explanation... :( Feb3 comment Convolution and absolute value and what about $y$? Feb3 asked Convolution and absolute value Jan3 accepted Contour integration of $\int_{-\infty}^{\infty}\frac {\sin^3 x}{x^3} dx$: where are the singularities? Jan3 awarded Teacher Jan2 comment Contour integration of $\int_{-\infty}^{\infty}\frac {\sin^3 x}{x^3} dx$: where are the singularities? @DanielFischer I have just written an answer, I'll be glad if you read it! :) Have a nice day!