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Question: how to use Riemann matrix to output Riemann surface

Question:how to use Riemann matrix to output Riemann surface

ComputerUser 535 Maple 2015
matrix riemann surface
September 07 2016
0

how to use Riemann matrix to output Riemann surface?

and plot this surface?

 

with(algcurves):
f:=y^3+2*x^7-x^3*y;
pm:=periodmatrix(f,x,y);
evalf(pm, 5);
rm:=evalf(periodmatrix(f,x,y,Riemann),10);
M := rm;
A := proc (x, y) options operator, arrow; RiemannTheta([x, y], M, [], 0.1e-1, output = list)[2] end proc;
plot3d(Re(A(x+I*y, 0)), x = 0 .. 1, y = 0 .. 4, grid = [40, 40]);

is this graph Riemann Surface?

if so, how to convert A into polynomials?
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