6
votes
3answers
176 views

A Case of DeleteCases for WeatherData

I am trying to use ListVectorPlot in combination with WeatherData and CountryData to show ...
1
vote
1answer
106 views

Placing many arrowheads on curves

I can't find anything anywhere on the web to help me with this. My plot: ...
1
vote
0answers
42 views

Plotting Phase Space [duplicate]

I have these two Equ' $$x'[t]=Sin[y]$$ $$y'[t]=Cos[x]$$ and im trying to plot the phase space(plane) for this system... ive tryed Equationtrekker but cant seem to find the way to use it this way... ...
0
votes
1answer
50 views

Plotting multiple vector fields with different domains in a single graph

I have attached a scheme of the problem. Essentially what I need is to plot 2 different vector fields in a single graph with different domains. The underlying physical problem is to model electric ...
1
vote
0answers
40 views

ListVectorPlot3D invalid dataset [duplicate]

I have generated a dataset which seems to fine according to the help page of Mathematica for a ListVectorPlot3D but, it says it is not a valid set. I have given the data set below, could someone ...
0
votes
0answers
82 views

Visualizing 3D vector field on surface of sphere [duplicate]

I want to vizualize (quite complicated) 3D vector field which has both real and imaginary part and is expressed in spherical coordinates. I was thinking about expressing the field for certain r and ...
2
votes
1answer
161 views

Plot Piecewise-Smooth Vector Field.

I want to plot a piecewise-smooth vector field. For instance: $F_1(x,y) = (x^2 + y^2, y^2)$, $F_2 (x,y) = (2xy,2xy-x^2)$ and $H(x,y) = x-y$ $F(x,y) = \begin{cases} F_1(x,y) \text{ if } H(x,y) ...
2
votes
1answer
211 views

Plotting a Gravity-Field [duplicate]

I try to plot a 2D gravity field or something similar in the form like $r/|r|^3$ with the standart builtin VectorPlot function: ...
4
votes
2answers
285 views

Plotting: Is anyone familiar with gradientfieldplot command?

I am trying to plot this graph showing the electric field lines and lines of equipotential based off the electrode configuration(in black) of two parallel lines. This is what I've been using for other ...
1
vote
3answers
456 views

Adding a Sphere onto an existing 3D plot

I have a 3D plot. I need to add a small sphere marking the starting point, r[t] == 0. I'm pretty new at Mathematica and would greatly appreciate some help. ...
2
votes
1answer
394 views

Plot a 3D vector field from a file [duplicate]

I have a data file with six columns {x,y,z} and {ux,uy,uz} respectively, and I would like to plot the 3D vector field. http://www.mediafire.com/download/udoa61hu0m6itrc/campo.txt I'm trying to do ...
3
votes
1answer
503 views

Normal and Tangent of Acceleration in 3D

I need to figure out how to find the Normal and Tangent of acceleration. I know the formula for the tangent of acceleration is $((Acceleration . Velocity)/(Velocity.Velocity))*Velocity$ and the normal ...
6
votes
2answers
433 views

Animated Vector plot

I'm trying to make an animation of a time-varying 2D vector field. However, I'm got a difficulty in that Mathematica normalises the length of the vectors with each call to ...
1
vote
1answer
319 views

Making a ListVectorPlot3D from data in an external file

I have a .dat file with six columns: {x y z vx vy vz}, where x, y, z are space coordinates and vx, vy, vz are the vector components. How can I use this file to get ...
0
votes
2answers
386 views

How to plot vector function r(t) = i + j + t*k

How can I plot the vector function $r(t) = i + j + t\;k$, where i, j, k are unit vectors, and t is the parameter of the function r.
5
votes
2answers
825 views

Plot 2D Vector function in 3D

I want to plot a 2D vector function such as $F(x,y) = (a(x,y),\,b(x,y))$ in a 3D graph so that the vectors are embedded in the xy plane. I tried to do the following: First I defined a piecewise ...
2
votes
3answers
951 views

Phase space vector field [duplicate]

I have a system of non linear equations and from NDSolve I get the solution. I plot the phase space with ...
1
vote
1answer
144 views

Need assistance with plotting Cell Center Points and Normals (ListPlot, ListVectorPlot)

This is the CellCenter datapoints and associated Normals data: http://wikisend.com/download/458974/CellCenters-and-Normals.dat The dat file contains data points for x,y coordinates and x,y ...
3
votes
1answer
567 views

Plotting a complicated vector field

If we consider the vector $\left ( A \cdot \nabla \right) \: B$, we have in Cartesian coordinates $$\left ( A \cdot \nabla \right) \: B = \left ( A \cdot \nabla B_x \right ) e_x + \left ( A \cdot ...
2
votes
1answer
782 views

Visualize eigenvectors at specified points?

I am very new to Mathematica and I got stuck about visualizing eigenvectors 2D and 3D. I want to visualize my largest eigenvector field of tensor data(15x15). I wrote this code for instance : ...
0
votes
1answer
552 views

Plot 3D vector that is a function of one variable

I have a function, r[t], which is a piecewise function that generates a 3D vector. It looks like this: ...
2
votes
3answers
293 views

Force VectorPlot3D to show One arrow

I am plotting a curl, and I only want VectorPlot3D to show one arrow, I have tried adjusting VectorPoints-> 1, but the plot show's no arrows at all. Is 2 the minimum VectorPoints I can have? If I ...
6
votes
2answers
826 views

Plotting a path in a vector field

I am trying to make a visual representation of the curve $y=x^{2}$, with $x\in\left[0,1\right]$ in the vector field defined by $\vec{F}=\left[-y,x\right]$. However, as far as I can tell there does ...