As of May 31, 2023, we have updated our Code of Conduct.

# Tag Info

Accepted

### How to divide the contour in three parts with the same arclength?

1. Specify Mesh as a list ...
• 364k
Accepted

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• 364k

• 228k
Accepted

### Approximation of the Fabius function with a quotient of exponentials

This question is very interesting since the Fabius function is a little mathematical treasure and many of its properties can be successfully demonstrated with Mathematica. It has a potential of ...
• 56k
Accepted

### Plotting the z(x,y) = 0 plane with Plot3D. How can I make the Mesh in polar coordinates?

Try Plot3D[0, {x, -10, 10}, {y, -10, 10},MeshFunctions -> {(Sqrt[#1^2 + #2^2]&), ArcTan[#1, #2] & } , MaxRecursion -> 4, PlotPoints -> 100]
• 44.5k

### How to define step size of y axis in mathematica plot

It's not the "stepsize", try PlotRange ...
• 44.5k
Accepted

### How to show a contourplot within a region?

RegionFunction -> Function[{x, y, z}, {x, y, z} ∈ R] Or RegionFunction -> Function[{x, y, z}, RegionMember[R, {x, y, z}]] ...
• 54k
Accepted

### Plotting two variables from multiple lists

If your lists are together in one larger list like this, lists = {l1, l2, l3, l4, <... potentially many more lists ...>}; then you can use ...
• 18.4k
Accepted

### How to modify this code so that the first derivative image of the function displays different colors above and below the x-axis?

Replace {functions} in the first argument of Plot with ...
• 364k
Accepted

### How to plot properly the disconnected regions if using the option Joined->True?

We can remove Flatten and export the two groups of points to xls with two sheets for further use. ...
• 54k

### Plotting two variables from multiple lists

If I am understanding correctly, you have a large number of lists that look like {x1 -> val1, x2 -> val2, x3 -> val3, x4 -> val4}. But if you gave them all variable names by hand (l1, l2 ,...
• 496

### How to draw a line on an existing region using RegionPlot with manipulate?

Next time please paste the code used. Since it is small, I retyped it now. The problem is that you have global z and control variable also called z. These should not be mixed. Here is one workaround. ...
• 130k

### Approximation of the Fabius function with a quotient of exponentials

The Fabius function is approximated well by this piecewise polynomial function: ...
• 7,143

### How to get DFT from Sound/Audio/Image?

If you already, have Audio or lists of samples, then the answer is simple. For Sound objects, you should convert them to ...
• 22.9k

### Approximation of the Fabius function with a quotient of exponentials

Extended comment: Optimal exponent a=? for the approximation If we take the general ansatz ...
• 44.5k

### Plotting the z(x,y) = 0 plane with Plot3D. How can I make the Mesh in polar coordinates?

Here some approaches: Using MeshFunctions ...
• 56.6k
Accepted

### Clip Planes issues

Using HalfSpace can clip the solid of cylinder. ...
• 54k
Accepted

### Vectorizing in 3D environments

replace ViewPoint -> {Infinity, 0, 0} to ViewPoint -> {1, 0, 0}, ViewProjection -> "Orthographic" ...
• 54k
Accepted

### Solving 3D heat equation with an off-center boundary condition

Note, that periodic boundary conditions and Dirichlet type condition could not be apply in one border simultaneously as it shown in a picture above. Therefore we should replace of center b.c. from the ...
• 39.8k
1 vote

### Plane embedded in Non-Euclidean spacetime

Here's the simple approach in case it helps (not a full answer), noting that we can phrase the constraint $u=x$ in terms of $t$ by substituting $x$ in for $u$ in $t = u + \int \frac{dz}{f(u,z)}$: <...
• 8,835
1 vote

### Problem during the analysis and plotting of a large data

When I try to plot only 1 single contour line with a reduced data set (you have over 4 millions points) I get: ...
• 40.6k
1 vote
Accepted

...
• 144k
1 vote
Accepted

### Solving an implicit equation involving Elliptic integral

Clear["Global`*"] eq1 = EllipticE[1/(1 + 16*(ja*me + jb*mo)^2)] + 16*(ja*me + jb*mo)^2*EllipticK[1/(1 + 16*(ja*me + jb*mo)^2)] == 0; As recommended ...
• 144k
1 vote

### Solving an implicit equation involving Elliptic integral

The equation can be reduced to a (complex) quadratic equation in four variables. One may obtain one variable in terms of the other three, but one may not obtain two of the variables in terms of the ...
• 228k
1 vote
Accepted

### How to adjust PlotRange automatically depending on the value of the function?

You could make a function to calculate the vertical bounds of the plot that takes the function as input and calculates the min and max of the function over the range {0.01, 100}. If the min is less ...
• 496
1 vote

### when we solve the simple ODE then

Being new, you should be aware built-in Mathematica functions and commands begin with upper-case letters including the single-letter commands: C,D, E, I, K,N O. If you were to begin a user-defined ...
• 2,292
1 vote

### LOG transformation

As an alternative to the already given approach, try this: data/.{x_,y_}->{x,Log(y+1)} Have fun!
• 37.5k
1 vote

### Vectorizing in 3D environments

Not really an answer, but a solution to my particular problem: ...
• 4,233

Only top scored, non community-wiki answers of a minimum length are eligible