Revert "Give spheres positive radii in examples"
This reverts commit 4728959ae0
, which
actually gave the spheres negative radii! I got confused by the sign
convention differences between the notes and the engine.
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parent
ea640f4861
commit
5abd4ca6e1
@ -213,8 +213,8 @@ elements = begin
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1 1 -1 -1 0
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1 1 -1 -1 0
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1 -1 1 -1 0
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1 -1 1 -1 0
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1 -1 -1 1 0
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1 -1 -1 1 0
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0.5 0.5 0.5 0.5 a+1
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-0.5 -0.5 -0.5 -0.5 -a-1
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-0.5 -0.5 -0.5 -0.5 a-1
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0.5 0.5 0.5 0.5 -a+1
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]
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]
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end
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end
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@ -23,7 +23,13 @@ end
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gram = sparse(J, K, values)
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gram = sparse(J, K, values)
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# set the independent variable
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# set the independent variable
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indep_val = 2//5
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#
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# using gram[6, 2] or gram[7, 1] as the independent variable seems to stall
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# convergence, even if its value comes from a known solution, like
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#
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# gram[6, 2] = 0.9936131705272925
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#
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indep_val = -9//5
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gram[6, 1] = BigFloat(indep_val)
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gram[6, 1] = BigFloat(indep_val)
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gram[1, 6] = gram[6, 1]
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gram[1, 6] = gram[6, 1]
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@ -37,8 +43,8 @@ guess = begin
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1 1 -1 -1 0
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1 1 -1 -1 0
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1 -1 1 -1 0
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1 -1 1 -1 0
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1 -1 -1 1 0
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1 -1 -1 1 0
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0.5 0.5 0.5 0.5 a+1
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-0.5 -0.5 -0.5 -0.5 -a-1
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-0.5 -0.5 -0.5 -0.5 a-1
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0.5 0.5 0.5 0.5 -a+1
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] + 0.2*Engine.rand_on_shell(fill(BigFloat(-1), 5)),
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] + 0.2*Engine.rand_on_shell(fill(BigFloat(-1), 5)),
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Engine.rand_on_shell(fill(BigFloat(-1), 2))
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Engine.rand_on_shell(fill(BigFloat(-1), 2))
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)
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)
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@ -28,7 +28,7 @@ for j in 1:6
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push!(values, -1/BigFloat(3))
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push!(values, -1/BigFloat(3))
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filled = true
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filled = true
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else
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else
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push!(values, 1)
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push!(values, -1)
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filled = true
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filled = true
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end
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end
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if filled
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if filled
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@ -46,8 +46,8 @@ guess = hcat(
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1 1 -1 -1 0
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1 1 -1 -1 0
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1 -1 1 -1 0
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1 -1 1 -1 0
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1 -1 -1 1 0
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1 -1 -1 1 0
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0 0 0 0 1.5
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0 0 0 0 -1.5
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1 1 1 1 0.5
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1 1 1 1 -0.5
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] + 0.2*Engine.rand_on_shell(fill(BigFloat(-1), 5)),
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] + 0.2*Engine.rand_on_shell(fill(BigFloat(-1), 5)),
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BigFloat[0, 0, 0, 0, 1]
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BigFloat[0, 0, 0, 0, 1]
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)
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)
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