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Maple 3D Phase Portrate

posted Sep 14, 2015, 10:46 PM by Javad Taghia   [ updated Sep 14, 2015, 10:48 PM ]
SYS := [ diff( x(t), t ) = 2*y(t),
         diff( y(t), t ) = 2*x(t)-y(t),
         diff( z(t), t ) = 1 ];


RHS := eval( map( rhs, SYS ), [x(t)=x,y(t)=y,z(t)=z] );


with( plots ):
fieldplot3d( RHS, x=-1..1, y=-1..1, z=-1..1, grid=[5,5,5], axes=boxed );

or

fieldplot3d(RHS, x = -1 .. 1, y = -1 .. 1, z = -1 .. 1, grid = [5, 5, 5], axes = boxed, arrows = `3-D`)
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