\(PLOTTING\ USING\ MATHEMATICA

      \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 2 - d\ Plotting\)

Plotting y = f (x) for f (x) = x^2

Plot[x^2, {x, -1, 1}]

Parametric plot of curve x = t^2,  y = t

ParametricPlot[{t^2, t}, {t, -3, 2}]

Polar coordinates You must always execute the following in order to graph		in polar coordinates

Needs["Graphics`Graphics`"];

\(Here\ t\ \ is\ used\ in\ place\ of\ theta\ and\ the\ first\ argument\ 
        of

      Polarplot\ is\ r\ as\ a\ function\ of\ t . \ The\ following\ gives\ the
        \ polar

      graph\ of\ \ r = t^2. \)

PolarPlot[t^2, {t, -2*Pi, 2 * Pi}]

3 - d Plotting

Surfaces specified by z = f (x, y)Here f (x, y) = x^2 + y^4

Plot3D[x^2 + y^4, {x, -30, 30}, {y, -6, 6}]

\(Contour\ \ plots\ of\ functions\ \ of\ two\ 

      variables : level\ curves\ in\ x - y\ plane\)

ContourPlot[Sin[x*y],  {x, 0, 3},  {y, 0, 3}]

Plotting parametric curves in 3 - d

ParametricPlot3D[{t, t*Cos[t],  Sin[t]},  {t,  -2, 2} ]