root(1)1*root(1)2*root(1)3*...root(1)9 = 362880
root(2)1*root(2)2*root(2)3*...root(2)9 = 602.3952191
root(3)1*root(3)2*root(3)3*...root(3)9 = 71.32706343
....
root(9)1*root(9)2*root(9)3*...root(9)9 = 4.147166274
___________
363614.98

363614.98 / 360 = 1010.041611

1010 / 360 = 2.805555556, -2.8, inv = 180
0.041611 * 360 = 14.97996, 15-x, inv = 49.9001996, -50, inv
=10.01999992,
-10, inv = 50

1 - 0.98 = 0.02, 0.02 * 360 = 7.2, 360 / 7.2 = 50

360 * 28 = 10080, 10080 / 180 = 56, 2 * 28 = 56

(errata?)

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