I can plot the phase of a complex function with Arg, using Hue as the ColorFunction:

DensityPlot[Arg[x + I y], {x, -1, 1}, {y, -1, 1},
    ColorFunction -> Function[z, Hue[z/(2 Pi)]],
    ColorFunctionScaling -> False, Mesh -> All]

But this produces

Output of DensityPlot

with a white line where the phase jumps by 2π. Is there any way to get rid of this line and to avoid the unnecessary extra sampling near the discontinuity?


closed as off-topic by Quantum_Oli, MarcoB, m_goldberg, march, garej Jun 29 '17 at 18:45

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "This question arises due to a simple mistake such as a trivial syntax error, incorrect capitalization, spelling mistake, or other typographical error and is unlikely to help any future visitors, or else it is easily found in the documentation." – Quantum_Oli, MarcoB, m_goldberg, march, garej
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