11 lines
412 B
Julia
11 lines
412 B
Julia
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using LinearAlgebra
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using Plots
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function plotQ(Q::Matrix, q::Vector, xyrange::Tuple{Tuple{Number, Number}, Tuple{Number, Number}})::Plots.Plot
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f(x, y) = dot((1/2) * hcat(x, y) * Q, vcat(x, y)) + dot(q', vcat(x, y))
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xrange = LinRange(xyrange[1][1], xyrange[2][1], 200)
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yrange = LinRange(xyrange[1][2], xyrange[2][2], 200)
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z = @. f(xrange', yrange)
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plt = contour(xrange, yrange, z)
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plt
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end
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