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I have a plot with multiple curves on it.  I would like to add lines indicating a direction along those lines.  For example, if I had a horizontal line on a plot, I would like to add arrows pointing to the right on the curve.  Can arrows be added to...
I am defining a system of equations with each equation being defined in the form "eq1 = 5x+6 == 0".  When I use the double equal signs and enter anything directly after them, the display of the double equal signs is changed to a slightly longer than...
I am trying to plot multiple curvers using the "Plot" function.  I would like to shade below one of the curves, but not fill for any other curves.  The line in my Mathematica notebook is "Plot[{V[x], -0.5, 0.5, 2, 8, 16}, {x, -3, 3}, Filling ->...