Questions on creating visualizations from functions or data using high-level constructors such as Plot, ListPlot, Histogram, etc.

learn more… | top users | synonyms (11)

3
votes
1answer
157 views

Stochastic Predator-Prey model using Gillespie's SSA

I'm trying to model the predator-prey situation using SSA. I am very new to Mathematica so my handling of matrices is probably terrible, and that's probably adding to my confusion: ...
5
votes
2answers
169 views

Initial time as parameter in ParametricNDSolve

I need a help with the function ParametricNDSolve. My goal is solve the equation \begin{array} &&\dot{x}(t) = y(t) \\ &\dot{y}(t) = x(t)-1-\varepsilon Cos(\omega t) \\ &x(t_0) = x_0\\ ...
1
vote
0answers
54 views

Controlling the size of a Plot, ListPlot when using Grid view [duplicate]

Is there any way to control the size of output graphics when using simple Grid command? Here is an example code: ...
0
votes
1answer
109 views

How to solve and plot this 2nd order non linear ODE? [closed]

Is this the correct way to plot the solution of this ODE from $(-8, 8)$? $$y'' - (1 - (y')^2)y' + y = 0$$ ...
0
votes
1answer
78 views

Interpolating a non-continuous set of points

I'm trying to create a pure function that I can feed into OutputResponse[ ] as the input u[t]. In order to do this, I've written code to create a square wave pulse train in the form of a collection of ...
0
votes
1answer
100 views

several plots at once

I have several files what i would like to plot at once, they are .dat files and they have names as a numerical sequence from 1 to 4 (they are about a hundred but for the example 4 are ok) so i use ...
1
vote
1answer
201 views

Combine 3D plots into one with Manipulate and different region plots

The following script generates two plots in a row, both of them controlled by Manipulate. I would like to combine them together in one. The problem I don't know how to solve is that the plotting ...
2
votes
1answer
103 views

Contourplot gives inaccurate ellipses

I'm trying to draw a family of ellipses with pre-defined foci as follows: ...
0
votes
0answers
94 views

Graphics Plotfield

A number of older books use the command: <<Graphics`PlotField` But Mathematica 10.0.2 says it cannot find it. Now, I know ...
1
vote
0answers
153 views

Draw mesh edge / map a graph to a mesh [closed]

I am doing a "force density" method to generate a mesh under certain load. The original mesh is like this: Then, I generate a IncidenceMatrix from the graph for further matrix transformation and ...
2
votes
3answers
228 views

Graphical output sizes [duplicate]

Is there any way to control the size of output graphics when using simple Grid command? Here is an example code: ...
-4
votes
1answer
97 views

Jump phenomena for primary resonance of the Duffing equation [closed]

In this equation I will write omega (Ω) instead of amplitude (a). ...
0
votes
0answers
196 views

Periodograms and power spectra of a simple harmonic oscillator

This a just a trivial case of a simplified differential equation that I am using. I am not too happy with the Periodogram command. Let's say that I have the ...
0
votes
1answer
96 views

Huge eps file in Export with ListPlot and Filling

I'm trying to export and eps file from a plot which contains a ListPlot with Filling ...
0
votes
1answer
115 views

Inset raster graphic position and size

I need to rasterize a very complicate plot and superimpose this to another plot. For example ...
3
votes
2answers
554 views

How to draw a particular contour line in ListDensityPlot?

In the plot produced by the following code, I want to draw a contour line for $f(x,y)=0.8$. Here $f(x,y)=\sin(x^2+y)$, however, actually we don't know $f$, we've got the data only. ...
0
votes
2answers
108 views

Plotting a 3D function along a vector

Newbie here! If I have the 3D function (a, b, and c are specified by me), E[a_,b_,c_] := (x+a)^2 + (y+b)^2 + (z+c)^2. How would I go about getting mathematica ...
1
vote
3answers
103 views

PlotLegends in Show with listlog

I am struggling with proper plot legends in Show command for two plots created by LogListPlot command. ...
2
votes
2answers
206 views

Plotting difference between a function and its inverse function

I would like to plot the difference a function and its inverse function. (1/27)*(x^4-6x^3+12x^2+19x) (* where 0<x<5 *) I tried the following: ...
3
votes
1answer
213 views

Modify ticks without specifying tick length

I am making a ListPlot, in which the x-axis is the result of AbsoluteTime. I want the tick text to be human-readable by applying ...
2
votes
1answer
116 views

Plotting less of a sphere

It is a follow-up question from this one. I'll put the code at the end. So far, I have: Notice how nearer $z$ is to $0$, the more transparent the sphere is. I don't want to plot the whole ...
2
votes
1answer
211 views

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 ...
5
votes
1answer
205 views

Finding and plotting roots with parameter

I have the following function: $$u(x,t)=\sum_{k=1}^\infty\frac{v_0 L}{\lambda_k c \sin\left(\lambda_k\right)}\sin\left(\frac{\lambda_kx}{L}\right)\sin\left(\frac{\lambda_kct}{L}\right)$$ and this ...
0
votes
1answer
92 views

Draw filled regions in DateListPlot

How do I draw specifiq filled regions in DateListPlot? I trying to plot something like this: Thanks
1
vote
1answer
202 views

Line integrals over a path defined by a set of points (rather than an analytic formula)

I'm getting inaccurate results when computing (plotting) the value of a function against the length of a line integral, where the path comes from a set of numerically calculated points. (In contrast, ...
0
votes
2answers
61 views

Proper arguments to ListPlot? [closed]

...
0
votes
1answer
80 views

NDSolve printing error message NDSolve::ndode [closed]

Using NDSolve while solving system of ODE's. Here is my try ...
0
votes
1answer
162 views

Plotting Complex Numbers - Functions of Complex Numbers [duplicate]

So I have to generate a few different plots with z, where z is a complete number... z[x_, y_] := x + y*I F[z_] := (25*Pi*z*I)/(1 + 10*Pi*z*I) First, I need to ...
0
votes
1answer
241 views

How to plot and visualize a single linear vector in 3D? [closed]

I have a vector (in physic) designated as F1=250cos(60)i+250cos(60)j+250cos(45)k, and i would like to see it in a 3D graphic with the axis centered at the origin, after what i would include other ...
0
votes
1answer
82 views

Equivalent parametric plots don't look the same

ParametricPlot[ {1, Tan[t]}, {t, -Pi/3, Pi/3}] ParametricPlot[ Sec[t] {Cos[t], Sin[t]}, {t, -Pi/3, Pi/3}] The second parametrization does not plot like the first, ...
1
vote
0answers
79 views

How to extract data points from an image of a log log plot? [duplicate]

I have a picture of a log-log plot, taken from a paper and I want to extract the data points so I will be able to plot them again along with results of my own solution. I would appreciate your help. ...
4
votes
1answer
89 views

Evaluating documentation example crashes the kernel

Save your work before attempting: Could someone confirm what looks like a bug (definitely occurs in v10 and OSX 10.8.5): In the documentation for Background and ...
3
votes
2answers
109 views

Overlay vector logarithmic plot and rasterized logarithmic ListPlot

I would like to produce a output PDF file of a log-linear plot obtain by composing the plot of an analytical function and a scatter plot of some random data. Since the random points are of the order ...
-1
votes
1answer
192 views

Specify and rename ticks in FrameTicks

When I plot, I use Frame -> True I would like all ticks on the frame axes to disappear and remain only with two ticks, say, 0.1 on the x-axis and 0.5 on the y ...
0
votes
1answer
167 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: ...
7
votes
1answer
353 views

Computing launch parameters for hitting a point in 3D with projectile under influence of wind

The end goal of this problem is to compute functions which describe the launch parameters which are needed to hit a specified goal in 3D in the presence of wind disturbances. This is as far I have ...
7
votes
1answer
215 views

How can a function know in which function it was evaluated?

Hello my second question here might be very hard. I am asking for something "magical", if i define a function g and i call it inside a function f, how can g have information about the outer function ...
1
vote
2answers
161 views

A cone being intercepted by a slanted plane

I have the 3d cone: Plot3D[-Sqrt[x^2 + y^2], {x, -20, 20}, {y, -20, 20}, Mesh -> None, BoxRatios -> {1, 1, 1}] I need a slanted plane intersecting it. ...
0
votes
1answer
126 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. ...
0
votes
1answer
166 views

How to plot 3D maximum and minimum surfaces? [closed]

I want to plot the maximum and minimum 3D surface for the following property: ...
4
votes
2answers
491 views

How to generate mesh and calculate volume of 3d object?

I saw a couple of posts dicretizing the graphic and generate DelaunayMesh to get volume of 3D object. The issue I'm having is that DelaunayMesh creates a bigger solid covering the original one, ...
0
votes
0answers
86 views

GeoLabels/Tooltips in Geographic Plots from Dataset

I am looking to plot a list of list of regions, and attach some data to the GeoLabel. All the data is stored right now in a Dataset that contains entries of the form ...
1
vote
1answer
196 views

Piecewise ColorFunction for Plot3D

I want to make a 3D plot where the ColorFunction is different depending on whether the function value is positive or negative. I know how to do the following: ...
0
votes
1answer
61 views

Problem in evaluation of a solution and plotting

I've written out a code which solves a equation and uses this solution to find "ph". ...
4
votes
1answer
228 views

Opacity and Plot

I have the following function : Plot[-2Cos[ Sqrt[50]/2 Sin[theta]] - 2, {theta, 0, Pi/2}, PlotStyle -> Opacity[0.5], AxesLabel -> {θ, E[θ]}] My ...
2
votes
0answers
220 views

Getting error messages from a Plot expression containing an integral [closed]

This should be a really simple question, but I just got confused. Plot[Integrate[x, x], {x, -5, 5}] Integrate::ilim: Invalid integration variable or limit(s) ...
1
vote
0answers
156 views

How to control the frequency range of Spectrogram?

How do you control the frequency range of Spectrogram? There is no obvious option. The documentation says it uses the same options as ArrayPlot, but PlotRange does not work in the way expected (it is ...
2
votes
1answer
239 views

Singularity on a simple Plot

While solving quartic equation ...
0
votes
0answers
32 views

Simple Sin plot generates unexpected output? [duplicate]

I an trying to do a very simple smooth Sin wave... Plot[Sin[ 2 Pi 440 t], {t, 0.0, 0.1}] ...but I am getting an unexpectedly non-smooth plot for it... What is ...
1
vote
1answer
403 views

How to add error bars to a fit function in Mathematica 10?

My professor gave us the following code to fit a Lorentzian to our data. I want to add vertical error bars (with individual error found in the experiment) to the plot but I don't know how. Any ...