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h1
The golden angle divides the full circle in the golden ratio
137.5°
golden angle
222.5°
222.5° / 137.5° = φ ≈ 1.618
Three disks showing 90 degrees makes spokes, 137.5 degrees f
θ = 90°
4 spokes, gaps
θ = 137.5° (golden)
no spokes, even fill
θ = 120°
3 spokes, gaps
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