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Question: fieldplot3d (color option): can't set color function

Question:fieldplot3d (color option): can't set color function

Melvin Brown 124
December 04 2016
0

I am running MAPLE 2016.1

I am able to set the color option to a function in fieldplot, e.g.

plots[fieldplot]([y, -sin(x)-(1/10)*y], x = -10 .. 10, y = -10 .. 10, arrows = SLIM, color = sin(x)*sin(y))

works as expected.  

However, for plots[fieldplot3d] I cannot set color = f(x,y,z) . E.g.

plots[fieldplot3d]([2*x, 2*y, 2*z], x = -1 .. 1, y = -1 .. 1, z = -1 .. 1, grid = [5, 5, 5], arrows = SLIM, color = sin(x)*sin(y)*sin(z));

Error, (in plot/color) invalid color specification: sin(x)*sin(y)*sin(z)

Please can anyone help?

MRB  
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