3D implicit surface

• plotimplicit(f(x,y,z),x,y,z) draws the graphic representation of the surface defined by the implicit equation f (x, y, z) = 0,
• plotimplicit(f(x,y,z),x=0..1,y=-1..1,z=-1..1) draws the surface defined by the implicit equation f (x, y, z) = 0, where 0 $\leq$ x $\leq$ 1, -1 $\leq$ y $\leq$ 1 and -1 $\leq$ z $\leq$ 1.

It is possible to add three arguments to specify the discretisation steps used for x, y and z with xstep=..., ystep=... and zstep=....
Input :

plotimplicit(x^2+y^2+z^2-1,x,y,z, xstep=0.2,ystep=0.1,zstep=0.3)

Input :

plotimplicit(x^2+y^2+z^2-1,x,y,z, xstep=0.2,ystep=0.1,zstep=0.3,unfactored)

Output :

The unit sphere

Input :

plotimplicit(x^2+y^2+z^2-1,x=-1..1,y=-1..1,z=-1..1)

Output :

The unit sphere