von Staudt’s Construction
W, X, Y, Z
WX
YX
=
—
÷
WZ
YZ
=
—
=
—
W′X′
Y′X′
=
—
÷
W′Z′
Y′Z′
=
—
=
—
Construction steps
Release Z
♪ Frequencies
♪ Lengths
Y at midpoint
0, 1, 2 …
Transversal
Opaque
No baseline
✨ Clean view (pencil only)
Angle
15°