# Plotting a parametric plot of two functions

I have two functions f1(x) and f2(x). I want to plot them such that f1 is on the axis of ordinates and f2 on the axis of abscissae. Any ideas?

Following example to it:

f1(x)=2x and f2(x)=3x. The graph should then show a line through the following points: {(0,0),(2,3),(4,6),(6,9),...}

• Are you looking for a way to combine a plot with one that is rotated 90 degrees? Your question and title do not make it clear. Jul 3, 2012 at 23:10
• Dear editor, if you are the OP of this question, please consider registering your account; it'd be more convenient for you and for the rest of us. Jul 4, 2012 at 9:46
• Thanks for the comment. Since the question was moved, I though I could not access it. Jul 4, 2012 at 10:11

ParametricPlot[{f2[x],f1[x]},{x, begin,end}]


where you have to fill in sensable values for begin and end.

Example:

ParametricPlot[{Sin[x], Cos[5 x]}, {x, 0, 10}] Perhaps you want this?

f1 = Sin;
f2 = Cos;

ParametricPlot[{{f1[x], x}, {x, f2[x]}}, {x, -2 π, 2 π}] Different rages for f1 and f2:

ParametricPlot[
{{f1[u], u}, {v, f2[v]}},
{u, 0, 3 π}, {v, -2 π, 2 π},
Mesh -> False
] 