Example for 3D plot with plotly ←

n = 100←

A = matrix(n; n) = matrix(100; 100) = 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 00000000000000000000⋯0 ⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮⋱⋮00000000000000000000⋯0 ←

$Repeat{$Repeat{A_{i, j} = 1 − e^{- 2·nsumsq(i − n2; j − n2)}; j = 1...n}; i = 1...n} = 0.0392←

PlotWidth = 400 , PlotHeight = 400←