# Tagged Questions

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49 views

### Using PlotLegends->“Expressions” inside Manipulate or DynamicModule doesn't work

Take this simple example: ...
178 views

### How to combine ParametricPlot and RegionPlot?

I have two implicitly defined equations. I plot the implicit curve using parametric plot. ...
61 views

### How to make such a $N(0,1)$ sketch for standard normal Z?

My attempt: Plot[PDF[NormalDistribution[], x], {x, -4, 4} , AxesLabel -> {None, "Z"}]
65 views

### Returning value if a point is in a region?

I'm writing a function so that if the user clicks on a certain region, a value is returned. The function takes in a condition list like the one below and a point. ...
25 views

### Region Plot - Non Intersecting Regions

Is there anyway to plot non intersecting regions with RegionPlot? I was thinking someting in the spirit of: ...
80 views

### Stability Boundaries via Routh-Hurwitz Criterion

I'm attempting to determine the stability boundaries of a 2nd order system via Routh-Hurwitz stability criterion. That is to say, I need to compute when a polynomial, which is in terms of variables ...
150 views

### RegionPlot returning a number

Introduced in 10.0, persists in 10.1. I had updated my mathematica to version 10 few days ago. And I had been shocked by the following fact: ...
36 views

### Different Order of Magnitude on Distinct Interval Plot Axes

I have a function as bellow y[x_] := 9*10^-9*(Exp[x/(2*23*10^-3)] - 1) I am trying to plot this function for the range ...
109 views

This code: ...
49 views

### Using custom ticks with RegionPlot3D

I'm trying to change to plot a sphere using RegionPlot3D and look at how the shape of the sphere changes when you use a logarithmic scale (or any nonlinear scale) ...
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### RegionPlot3D does not plot “thin” regions?

Basically, I ultimately want to make something like this: However, I am unsure of how to do this in Mathematica. I'm trying to do this via RegionPlot3D, and for ...
56 views

### Complex number plot with inequalities [duplicate]

I need to plot the function where z is a complex number: $$S = {z:|z + 0.15|<0.6} \wedge {z:Pi/4<=arg(z)<=Pi}$$ I can do this: ...
59 views

### Region projection of multivariable interpolated function

I have a problem plotting a multivariable interpolated function when projected into two-dimensions using Resolve and RegionPlot. ...
51 views

### why RegionPlot has cut in ring when changing plot range?

I am not sure I understand this one, thought to check with the experts. Please compare ...
91 views

### TransformedRegion, RegionPlot broken in 10.0.2.0?

After having had trouble applying TranslationTransform to a simple region like so ...
212 views

### How to show surfaces as a implicit plot in 3d?

I was trying to show a feasible region with these lines: ...
88 views

### Superpose a map and a region plot

I would like to add on a map of city a region plot, which is this one in this case : ...
63 views

### How to make RegionPlot3D automatically choose PlotRange?

I'm looking at the winning one-liners of 2014, this one inparticular: ...
177 views

### Rapid density estimation and rendering of decision regions

I would like to create an interactive demonstration using Manipulate[] that illustrates a fundamental concept in pattern classification and machine learning. This ...
194 views

### How to plot this region?

Consider the $2\times 2$ matrices \begin{align} A=\begin{bmatrix} a_{11} & a_{12} \\ a_{21} & a_{22} \end{bmatrix} \end{align} and \begin{align} B=\begin{bmatrix} b_{11} & b_{12} \\ ...
120 views

### RegionPlot of an area inside a polar plot (or its equivalent parametric plot)

Let' s take a most simple example for a polar plot, the Archimede's spiral. ...
39 views

### Error message with RegionPlot after SetOptions

I get an error message with SetOptions[RegionPlot, ImageSize -> Medium]; RegionPlot[u v (1 - v) >= 10, {v, 0, 1}, {u, 0, 100}] that says ...
194 views

### RegionPlot from NDSolve

I am having quite a headache using RegionPlot to see the region of acceptance of certain coupled differential equation. I shall elaborate and try to be as ...
142 views

### Find Unconnected Subregions

If I have a region, how can I identify sub regions that may be disconnected, if any exist? region defines a rectangular region given two diagonally opposed ...
128 views

### Why this region is bad?

I want to draw a region but the result of Mathematica is not good. Why? ...
92 views

### RegionPlot fails when given function with internally redefined variables

I've just upgraded to v10, and have noticed that some of my trusty old notebooks which used RegionPlot now fail to run. I've boiled down the problem I'm having to ...
91 views

### RegionPlot with ColorFunction gives ugly frame labels

I was working on a simple 2D region plot: ...
157 views

### How to embed a filled Region in a Graphics?

Let for example: regn = RegionDifference[Rectangle[{-2, -2}, {2, 2}], Disk[{0, 0}, 1]]; The only documented way I found to draw a gereric region ...
175 views

### How to shade a plotted region in specific direction?

I am using RegionPlot to plot a linear program maximize 30x1+25x2 with the constraints ...
96 views

### RegionFunction generalized to plot a different colour/style for the largest expression [duplicate]

I have several functions of two variables defined in some region, say functions[x_,y_]:={0,x-y,Sin[x^2-y]} I'd like a plot to show at a glance the regions where ...
297 views

### How can i construct a 3D surface pass through a curve defined by formula and some other controllable points?

For example, If a have a curve defined by x^2+y^2=1 and z=0, and some isolated points having z coordinates, Can I construct a 3D surface passed through? It's better if I can change the surface shape ...
202 views

### Using RegionPlot3D to make a cone under restrictions

I have to plot a cone that satisfies this statement: Use the RegionPlot3D command to draw a picture of a cone with its point at the origin. The other end of the cone is a circle with radius 5 ...
293 views

### Aligning the axeslabel in a 3D list plot ($x,y,z$) (edited)?

I have the following code ...
130 views

### RegionPlot won't finish, but Plot3D does

I would like to produce a region plot where some function is less than 1. This runs for hours without finishing (until I lose patience and abort it). However, I can plot the function (using ...
78 views

### Strange functioning of RegionPlot with Reduce's output

I have defined this two quantities: f = (-b + Sqrt[b^2 + 4 a])/(2 a) g = (-b - Sqrt[b^2 + 4 a])/(2 a) and I want to solve this system in function of $a$, for ...
107 views

### Stability region of midpoint method using Solve and RegionPlot

I've been trying to obtain the stability region in the $(\lambda_R, i\lambda_I)$ plane of the midpoint rule $$y_{n+1}= y_{n-1}+2h\dot{y}_n,$$ for the model problem $\dot{y}=\lambda y$. The roots for ...
177 views

212 views

### Adding a thick curve to a regionplot

Suppose we have the following simple RegionPlot: ...
95 views

### Plotting a transformed region only works with integer inputs

I can't figure out why the following code only works with integers. ...
88 views

### How to make a region plot indicating the largest among a set of functions [duplicate]

I want to make a RegionPlot (or possibly a ContourPlot) in $x$-$y$ space that indicates which among a set of functions is the ...
191 views

### Can't plot rotated region

I was experimenting with the code from this question when I ran into another problem with regions. ...
82 views

### Why does one Monitor expression work while another fails?

I have a (somewhat involved) function f[x?NumericQ, y?NumericQ] and for some reason it behaves differently when given a Table ...
159 views

### Smooth out contour in RegionPlot/ContourPlot

I would like to smooth out the jagged edges in the outermost contours in the following plot: I have data of values as a function of variables (x,y) in the form ...
152 views

### RegionPlot3D and Texture

I'm getting a white solid instead of a solid with texture, I'm not sure what is wrong: ...
103 views

### RegionPlot not working as expected

I was trying to evaluate the following expression: RegionPlot[a > 0 && 2 a + b == 0, {a, -2, 2}, {b, -1.5, 1}, PlotLegends -> "Expressions"] ...
118 views

### Revert y-axis in RegionPlot

I have the following code: ...
I want to plot a 2-dimensional region with constraint $x+y\le N$, i.e., I want to plot a sub-region inside a 2-simplex. As an example: ...