Sine function in 2D

I have already used the simple plot command but how can pcolor and contour plot be used to plot sine and cosine function in 2D? Need help!

Answer 1

[KSSV]

x = linspace(0,2*pi) ;
y = x ; 
[X,Y] = meshgrid(x,y) ; 
Z = sin(X) ;
surf(X,Y,Z)

[Sucheta]

Thank you! Could you also tell me how the light and lighting function can be used for the same?