0
votes
0answers
12 views

Problem with Flatten [on hold]

I am calculating the metric tensor and its components.I have a metric of 6 X 6 dimensional matrix that contains terms like 1/z^6 ...
0
votes
1answer
45 views

Contourplot of complex Roots

Suppose I have this equation: $$ z^2 + 3z + (x^2 + y^2) = 0 $$ I want the real and complex contour plot of $z(x,y)$. Analytically, the real/imaginary boundary is separated by condition $x^2 + y^2 ...
0
votes
3answers
48 views

How to draw a plane parallel to one of the coordinate planes? [on hold]

Sorry for the fact that I ask actually the same question on three different stackexchange sites (stackoverflow, mathematics and now here), but I need to find an answer to my problem as quickly as ...
0
votes
0answers
49 views

Plotting Geodesics in Kerr

I'm interested in plotting the trajectories of null geodesics near a rotating black hole (given by the Kerr solution) which involves a system of first order differential equations. Some Context (not ...
2
votes
2answers
107 views

Conversion of 3D plot to 2D Contour Plot

Is it possible for Mathematica to convert a 3D plot into a 2D contour plot without having to recompute the values for each point? I realize that looking directly down at the 3D plot will be similar to ...
0
votes
2answers
53 views

Plot a perfect looking circle using two functions, always look like an ellipse [duplicate]

I want to use the the following two functions to plot a perfect looking circle, but the graph always ends up looking a bit squashed. I've been playing with some of the parameters of the function but ...
0
votes
1answer
55 views

What is wrong with ContourPlot [duplicate]

Why does this plot have a big blank hole in it? ...
2
votes
0answers
47 views

Aborts and beeps without error warning

I have a piece of code that generates a figure, performing a calculation to generate each pixel. At a certain resolution it runs fine, but after a high enough resolution it fails. Mathematica beeps ...
0
votes
0answers
47 views

I see error messages when I use LogLinear Plot but not when I use Plot

I have written an application with Manipulate that plots the results of several calculations. What I find strange is that when I have my application use ...
0
votes
1answer
62 views

How can I scale a plot in my Manipulate?

I want use scale in the same way as Mister Trevor Cole in his most excellent demonstration at the Wolfram Demonstrations site: ...
0
votes
0answers
25 views

Replace parameter of NDSolve by a Function

I dont know how to replace the paremeter inside of an interpolation function result from NDSolve by a function of another parameter. This is it: I have a ...
4
votes
2answers
187 views

Where can I get detailed information on how the Plot command works?

The command Plot[x^2, {x, -3, 3}, PlotStyle -> Arrowheads[{-.025, .025}]] /.Line -> Arrow produces this output. What I don't understand is what ...
1
vote
1answer
43 views

What is the correct way to plot a dynamically generated list of functions?

For example, I want to generate a list of random waves and plot them. Then I wrote f:=Random[Real] h:=Floor[f*20] And then ...
13
votes
4answers
412 views

HoldForm doesn't hold form

In Mathematica version 10, HoldForm no longer produces the same results as in version 8 (edit: I only have versions 10 and 8 installed, so can't compare to version ...
0
votes
0answers
73 views

Stochastic Simulation using the Gillespie algorithm

I'm trying to reproduce the simulation with demographic stochasticity in Figure 1 from the paper entitled "Dynamical Resonance Can Account For Seasonality of Influenza Epidemics" ...
0
votes
0answers
50 views

Trouble outputting Plot

I am trying to solve a system of ODEs and plot them with Manipulate but I keep getting blank outputs. Below is my code: ...
0
votes
0answers
63 views

Invert 3D objects (shape) to 3D patterns objects (shape)?

Is it possible to invert the 3D object (positive model) to 3D pattern objects (negative model) (for example, patterns for casting). For example (positive model): ...
1
vote
1answer
44 views

how to generate mesh functions according to more that one condition? [on hold]

how to generate mesh functions according to more than one condition? This plot will have mesh according to z: ...
0
votes
0answers
36 views

Plotting four optimization solutions together on one plot [on hold]

I have three variables. One of them might be a constant. I have four functions. I would like to plot them in a special way. Different pairs of variables give different values for each function. I ...
5
votes
3answers
168 views

Plot the plane so different condition has a different color

I have a list of functions defined on the plane, and I want to know which one of those functions is smaller than the other functions at particular points. Currently, what I do is ...
1
vote
0answers
19 views

LegendLayout not working as asked [duplicate]

Why the following code does not result in row layout as specified (see the attached picture for result)? ...
1
vote
2answers
66 views

How to widen PlotLegends?

I have a plot whose legend, when placed at the bottom, is two lines rather than one: ...
2
votes
0answers
69 views

How to transform frame ticks from 1, 2, 3, … to x, 2 x, 3 x, …?

I want to replace the numbers on a framed plot's axes with that number multiplied by a variable, call it x. (The idea is that I'm plotting things which depend on ...
1
vote
1answer
73 views

Two discrete colors for surface with ParametricPlot3D

I am trying to create a plot of a surface that is yellow above the xy-plane (z>0), but blue below (z<0). My first attempt was to use ...
0
votes
0answers
26 views

Radius Values not Displaying in (List)PolarPlot

I'm having troubles with the PolarAxes option in ListPolarPlot under Mathematica 8.0. To be more specific, when I run the ...
0
votes
0answers
39 views

NIntegrate with a parameter in integrand and upper limit [closed]

I want to evaluate NIntegrate[f(x, p), {x, 0, xmax}], where xmax = FindRoot[g(t, p), {t, 1}], and plot the result as a function ...
2
votes
1answer
87 views

How to put labels on a 3d plot

I'm close, but I'm stuck. Here's my code so far: ...
0
votes
1answer
118 views

Plot3D unable to understand input function

I'm attempting to plot the Wigner Function of the Morse Oscillator defined as ...
0
votes
1answer
26 views

FrameTicks puts tick markers on both sides of plot? [closed]

I have a framed plot and I want to use Ticks to create customized tick marks, along the lines of ...
9
votes
2answers
95 views

Strange Behavior in Barchart LabelingFunction

BarChart formatting algorithm make me loose some time today in V10. Now, LabelingFunction do not work beyond some number of Labels. See example: ...
2
votes
2answers
90 views

How to get axes labels with PlotTheme->“Scientific”?

I'm liking the new plot themes in Mathematica 10, but finding that I can't override the options it sets. For example, ...
5
votes
1answer
337 views

How can I plot a Chebyshev spiral?

The Chebyshev polynomials T_n of the first kind are a certain set of orthogonal polynomials. They can be defined by T_n(cos(x))=cos(nx), the first of them are T_0(x) = 1 T_1(x) = x T_2(x) = ...
0
votes
1answer
26 views

Manipulate Discrete Values Labelling

I have 3 lists of plots (generated in other code), rawplots, weightplots,linearizedplots. ...
2
votes
3answers
89 views

Plot least squares curve on Linear Log Plot

I have the following Data: ...
1
vote
2answers
104 views

How do I plot points on a sphere using spherical coordinates?

Currently, I have a matrix containing a list of spherical coordinates. Column 1 is r; r=1 for all points. Column 2 is theta and column 3 is phi. Each row is an ordered triple (r,theta,phi). Is there a ...
1
vote
1answer
80 views

Ploting legends in contourplot

In Mathematica 8. Given this: ...
4
votes
1answer
154 views

BoxWhiskerChart - 10-90th percentile instead of min - max

I am trying to draw a custom BoxWhiskerChart with alternative values determining fences. I have data that has a lot of outliers and I have to compare it to another chart that has 10-90th percentile ...
1
vote
1answer
74 views

ListPlot[] code for CSV file not working

I have a CSV file with $9$ columns. I want to plot them in the following way. Column $1$ will be along the $X$-axis. Any point $(x_i, y_i)$ of $i$-th curve in the plot will have the $x$ value from the ...
-2
votes
0answers
61 views

How to draw a shock polar like picture? [closed]

How to draw a picture like this? http://en.wikipedia.org/wiki/Shock_polar
0
votes
0answers
63 views

StreamPlot,StreamPoints and the Fisher's equation

I'm trying to reproduce a StreamPlot from a vector field encoundered while analyzing the Fisher's equation (http://en.wikipedia.org/wiki/Fisher%27s_equation), for a ...
1
vote
2answers
229 views

Plotting 3D piecewise function with distinct colors

I want to draw the following picture in Mathematica as shown below with distinct color for each section.
0
votes
2answers
53 views

intersection between two curves in Mathematica [duplicate]

I have a ListLinePlot of some datas and a plot of a constant function. How can I find the intersection point? My data are: ...
2
votes
2answers
66 views

Changing axes in ContourPlot

I'm new using mathematica. I'm plotting a funcion that depends on two variables (r and C) let's say z= r^2+c^2 When I use ContourPlot, level curves are shown in a r-C plane. I'm trying to obtain the ...
3
votes
1answer
48 views

How does epilog position work in logplots?

I'm trying to use Epilog in my plots but the position of the Epilog isn't making much sense. As a minimal example consider, ...
0
votes
1answer
99 views

How do I subtract two contours?

Suppose I have this contour described by the equation the root $z$ of this equation $ \frac{1}{x^2 + y^2} + \frac{1}{xz} = 2y $ Now suppose the equation is tweaked slightly, with an addition of $w$, ...
3
votes
3answers
146 views

How to simultaneously change the color and thickness in ContourStyle?

When plotting contours with ContourPlot, one can use the option ContourStyle to change the contours of the plot. With the ...
0
votes
1answer
67 views

Why won't mathematica plot the 3D Contour of this function?

I want to find the 3D contour of the equation1: ...
0
votes
1answer
91 views

Legend in a Show

I am trying to put some legends on a graph but I am not able to do that. This is my code: ...
1
vote
1answer
88 views

How to get a uniformly distributed list of points from a B-spline function

I created a spline function from a list of points and made a plot as follows: ...
0
votes
0answers
44 views

Help to plot Poincare section for a system of delay differential equations

I'am trying to plot Poincare section for a 4-dimentional system of Delay differential equations. I don't know how to specify initial conditions. Can I use each of the code in the following ? Also how ...