1
vote
1answer
82 views

Handling ± in a set of equations

First let me post the question that I am doing: You see for wave equation y2, there is a ± sign. I know how to do + or ...
2
votes
1answer
108 views

Plotting and ContourPlot

Make a Plot and a ContourPlot that gives the same diagram and use ContourPlot on a ...
-1
votes
2answers
65 views

Question about plotting

I have to plot this graph http://i.imgur.com/hf54aiT.jpg I tried Graphics[{Circle[{0, 0}, 3, {-2Pi, 2Pi}]},PointSize[.025]] I don't know how to proceed from here. ...
-2
votes
2answers
81 views

Plot isn't outputting a plot [closed]

I am trying to plot the magnitude complex function (f) with respect to w. For some reason, Plot is just displaying a set of axes, with no points. Any Idea what's going on here? ...
2
votes
0answers
193 views

Plotting equipotentials gone wrong [duplicate]

I'm plotting the equipotential of the potential function: $$\phi(x,y,z):=\frac{1+x^{2}+y^{2}+z^{2}}{[\left(1+x^{2}+y^{2}+z^{2}\right)^{2}-4z^{2}]^{1/2}}$$ Mathematica code: ...