19: Plot parametric functions

1. plot y=sin(x) for -10<x<10 with the axes reversed, i.e., y as the horizontal axis and x as the vertical axis
2. plot (x(t), y(t)) for 0<t<20, where x(t) = e^(-0.1t)cos t and y(t) = e^(-0.1t)sin t

Mathematica:

(1)
ParametricPlot[,, AxesLabel->]

(2)
ParametricPlot[ , ]

Matlab:

(1)
xxx

(2)
xxx

Maple:

(1)
xxx

(2)
xxx

IDL:

(1)
x = findgen(200)/10-10 plot, sin(x), x

(2)
t = findgen(200)/10 plot, exp(-0.1*t)*cos(t), exp(-0.1*t)*sin(t)