GoldenFloat 2: phi as a ratio

Seven widths split by one rule, and how far each sits from 1 / phi, read from phi_ratio.t27. Lesson 2 of the GoldenFloat course.

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Where the numbers come from

The lesson spec public/t27/files/specs/numeric/phi_ratio.t27, read when the course was authored; every number in the table is a constant, a test value or arithmetic of that file
Nothing on this page was measured on hardware or timed; a value written into a test is said to be written in, not computed