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> restart; with(plots):
fnt:= 'font = [COURIER, 12]':

> tubeplot ({[3*t^2, 2.5*t, 0.2*t, t = -4..5, radius = 4]},
  numpoints = 15,
  tubepoints = 20,
  orientation = [-33, 69]);

Maple-Plot

> tubeplot ({[0, 0, t, t = -1..0, radius = t + 1],
           [0, 0, t, t =  0..1, radius = 1 - t]},
           view = [-1..1, -1..1, -1..1], fnt,
           orientation = [33, 65],
           numpoints = 10,
           tubepoints = 30);

Maple-Plot

> tubeplot ({[0, 0, t, t = -1..0, radius = t^2 + 1],
           [0, 0, t, t =  0..1, radius = 1 - t^2]},
           view = [-2..2, -2..2, -1..1],
           orientation = [112, 107],
           numpoints = 10,
           tubepoints = 30);

Maple-Plot

> tubeplot ({[0, cos(t), sin(2*t),
  t = 0..2*Pi,
  radius = 0.1]},
  view = [-0.1..0.1, -1.5..1.5, -1.5..1.5],
  scaling = unconstrained,
  orientation = [18, 76],
  numpoints = 40,
  tubepoints = 30);

Maple-Plot

> sphereplot ((1.3)^x*sin(y),
  x = -1..2*Pi, y = 0..Pi,
  style = hidden, fnt,
  numpoints = 2000,
  color = maroon,
  orientation = [-64, -113],
  axes = boxed);

Maple-Plot

> plot3d ((1.3)^x*sin(y),
  x = -2..6, y = -4..3,
  style = patchnogrid,
  numpoints = 2000,
  orientation = [-129, -90],
  axes = none);

Maple-Plot


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