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Consider the differential equation$$f''[x]==a f[x]$$The result is a combination of trigonometric or hyperbolic functions, something like:f=Function[{x},C[1]Cos[Sqrt[a]x]+C[2]Sin[Sqrt[a]x]how do I separate the two functions Cos and Sin?...
Asked on 06/25/2021
2 answerI am trying to solve the following iterative equation: where the parameter tao (needed in the previous equation) is defined...
Asked on 06/24/2021
2 answerI am trying to create a background correction inspired by the PyMca strip background method. The data I'm trying to correct is a HPLC chromatogram in the...
Asked on 06/24/2021 by rowsi
0 answerFor example, if I have a Python script called simple.py that contains code as simple asa=1print(a)thenRunProcess[{"python", "E:wsimple.py"}]is OK and gives<|"ExitCode" -> 0, "StandardOutput" -> "1 ",...
Asked on 06/24/2021
3 answerLet's say I have assigned the follow value to s bys = Floor[Log[n]]Then I want to computeSum[r^j, {j, 0, s}]but with s as a symbol, because otherwise the...
Asked on 06/24/2021
1 answerI would like to plot ListStepPlot with error bar. here the whole case : I am starting with data table {x1,x2,x3,....xn}. I need to integrate it "by part" (summing the...
Asked on 06/24/2021
2 answerHow I can solve the equation in 3D domain?According to the following post, I encounter an error when I run the program.Any help would be graet! This section...
Asked on 06/24/2021 by iman karimipour
1 answerHow can I write this tensor in Mathematica? $$mathcal{P}_{ijkl}(N) = Big( delta_{ik} - N_iN_k Big) Big( delta_{jl} - N_jN_l Big) - dfrac{1}{2} Big( delta_{ij} - N_iN_j Big)Big( delta_{kl} -...
Asked on 06/24/2021
1 answerI am trying to get the Matrix form of the following Hamiltonian for a finite dimension of $hat a$$$H = wc{hat a^dagger}hat a + wa{{{{hat sigma }_z}}...
Asked on 06/24/2021 by Bekaso
0 answerIs there a way to display (animated) graphics outside of Mathematica notebooks, i.e., in a specified rectangle on the screen? I can imagine that one way to achieve that is...
Asked on 06/24/2021
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