# All Questions

109 views

### sluggish 3D graphics

After I plot two concentric cylinder, I see that rotating the 3d object is not smooth and it's slow. ...
90 views

### How to define the symbolic expression $V = \frac{1}{N} \sum_{i=1}^N ( y_i(g) - z_i)^2$ in Mathematica?

I want to define this expression symbolically: $V = \frac{1}{N} \sum_{i=1}^N ( y_i(g) - z_i)^2$ in which $\{y_i(g)\}_{i=1}^N$ is to be understood as a symbolic sequence that depends on a vector $g$. ...
37 views

### dropOperator done on Matrix of a Matrix - How is this done?

I have implemented this dropOperator from dropOperator from stackexchange and works fine on a single Matrix. But now I have a Matrix of a Matrix and want to drop some rows or columns (in the pic below ...
140 views

### How to solve Fuzzy Differential Equations

How to solve Fuzzy Differential Equations using DSolve or NDSolve, Or Differential Equations with fuzzy number as initial conditions
226 views

### How To Replace $\rightarrow$ by $==$ in Mathematica's Output when using Solve

I want to create equations out of the output (solutions) produced by Mathematica when using the Solve functions. For argument's sake, consider the following. ...
661 views

### How do I add contour labels to contour plot?

I tried ContourPlot[f[x, y], {x, -2, 2}, {y, -2, 2}, ContourLabels->automatic] , but it messes up the contourplot. How can I just add values to the contours ...
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### How to create 3d region of f[x,y] over triangular region on xy plane?

I need to create a VOLUME under f[x,y]= x (y^3 + 1)^(1/2) that's above the triangular region bounded by y=x/3, ...
213 views

### Plotting ODE solutions with two parameters

I have a system of two first-order ODEs with two parameters, a and b and I'm trying to plot the solution curve in the X-Y plane at a given initial condition for various parameter values. Can someone ...
801 views

### How to build this grid with less code?

I have the diagonal and both upper and lower triangulars of a grid. ...
254 views

### Find GeometricTransform from 3D object external surfaces to a positional point cloud data

I am looking for another way to approach this problem. Any suggestion on how to optimize the computing speed is welcome. I have a BSplineFunction which accurately ...
182 views

### Injecting list of controls into manipulate

I am trying to program a method to manually move around graph vertices, and then output the new coordinates. I'd like to turn this into a function that can be called with a variable number of ...
60 views

### probability going outside 1 (due to optimization violation of constraint)

I am working on an optimization, which involves the following density: ...
90 views

### Count the number of element repeats at various distances

I have a function of x: f[x_] := Abs[Extract[list, x + n] - Extract[list, x]] I then apply this: ...
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138 views

### Direction Field for an Ordinary Differential Equation [duplicate]

I have found links for plot the direction field of a differential equation. For example: How can I plot the direction field for a differential equation? And: Plotting the direction field of a ...
82 views

### Regarding Evaluated True

Done a bit of reading: Normal[Series[ ]] does not give a normal expression Regarding the Evaluated->True, consider: ...
314 views

### i cannot create a standalone executable from an exported Mathematica function

I generated the C code: compute.c ...
414 views

### How can I improve speed of code that generates an orbit plot?

I am attempting to generate an orbit for the "time 2 Pi map" of a forced damped pendulum. The example comes from page 57 in the Chaos text by Alligood,Sauer and Yorke, see Figure 2.7. The code ...
104 views

### ColorFunction that depends on angle of line

I have a ListLinePlot, and I want the ColorFunction to vary as the angle, so that the color of the whole line depends on its angle from the x-axis. Here is a MWE of what I am doing: ...
60 views

### What is the simplest way to obtain function obect of a given function?

Suppose I have a function p of some arguments: p[x_,y_]:= (* something *) Now I with to pass this function as an object to ...
180 views

### List(Line)Plot with a big jump

I am trying to plot a joined plot. Some possible ways would be ListPlot with Joined -> True or ...