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plot abs((-25/16 - 37/16*I)*z^3 + 3/8*I*z^2 + (33/8 + 23/8*I)*z + (11/4 + 1/2*I) )
plot abs((-25/16 - 37/16*I)*z^3 + 3/8*I*z^2 + (33/8 + 23/8*I)*z + (11/4 + 1/2*I) )
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