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(1/64^2)*Sum[Sum[Sin[(i+0.5)/64+Sqrt[(j+0.5)/64]],{j,0,63}],{i,0,63}]
(1/64^2)*Sum[Sum[Sin[(i+0.5)/64+Sqrt[(j+0.5)/64]],{j,0,63}],{i,0,63}]
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