Mathematica Questions, Problems & Solutions : TransWikia.com ~ Page 92

How to perform integration with Dirac Delta in Mathematica?

I am trying to calculate the integral $$y(x)=int^b_a dzdelta(x-w_z)$$ were $delta$ is the dirac delta function, $a=-3$, $b=3$ and $w$ is a one-dimensional...

Asked on 05/25/2021 by gbd

0 answer

Extract the boundary from a ListContourPlot

I have a function like this Exp[-([Psi]+[Delta]* x)^2/2]. I need to numerically integrate this function and represent using ListContourPlot. Hence I Use the code like thist2 = Flatten[ ...

Asked on 05/25/2021

2 answer

Labeling coordinate curves in ParametricPlot

I want to display a coordinate grid in parabolic coordinates:ParametricPlot[{-parabolic[r, phi], parabolic[r, phi]}, {r,0,1}, {phi,-1, 1}, PlotStyle -> {Gray, Gray}, BoundaryStyle -> Dashed, Mesh -> 9,...

Asked on 05/25/2021 by gilonik

1 answer

UnityLink called from wolframscript seems to work, but

I've tried to use UnityLink with Mathematica 12.1.1 on OS X 10.15.7.I found that code running ok in Mathematica FrontEnd does not run correctly if used in wolframscript. When...

Asked on 05/25/2021 by rlj

0 answer

Is it possible to make a composite tooltip with multiple data types?

I have a large set of spectral data that requires comparison to training data. I need to provide a simple color difference for each piece of data, Spectral Plots...

Asked on 05/25/2021 by R Hall

1 answer

How do I recreate the lines and labels as seen in this image?

How do I recreate the light gray lines and labels pointing to the zeros of this function? I have no...

Asked on 05/25/2021

0 answer

Can Mathematica be wrong about the solution of a non-linear system?

I am trying to solve analytically a non-linear system of equations:Ec1 = A + 2*pvz*Ezmiss - 2*El*Sqrt[Etmiss^2 + Ezmiss^2 + mmiss^2];Ec2 = B - mmiss^2 + 2*pvz*Ezmiss - 2*Evis*Sqrt[Etmiss^2...

Asked on 05/25/2021 by Antonio J. Gómez

1 answer

How to prevent NDSolve to store result for each time step?

It's very painrful especially using FEM that Mathematica gives a solution for transient Navier-Stokes equation at each time step. Is it possicle to control output? This is my code:...

Asked on 05/25/2021 by Rodion Stepanov

1 answer

How should I define the Cayley transform?

I am a beginner to Mathematica. I am trying to define a function which would evalute the Cayley matrix transform, namely taking a matrix $M$ such that $I...

Asked on 05/24/2021 by the_lar

1 answer

Colorize a Region

My searches have lead nowhere on this one. I have a MeshRegion (say, a 2D manifold embedded in 3D) and would like to plot a function on it: such that...

Asked on 05/24/2021

1 answer

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