Books by Greg Fee

Level B2 · pages · English

The Golden Mean or Ratio[(1+sqrt(5))/2] To 20,000 places

Written by Greg Fee

The work presents the golden ratio (1+sqrt(5))/2 calculated to 20,000 places. It also lists other mathematical constants, including Catalan's constant, Euler's gamma, and the Artin, Backhouse, and Khinchin constants.

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Categories: Mathematics

Readers: Adults Teens

Suggested age: 13+ (AI estimate)

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Suggested age, readers, English difficulty and US school grade are separate labels. Age groups are guidance based on source information or editorial review; unreviewed books are “Not assessed”. A US grade is assigned only with source information or a documented assessment; otherwise it is “Not assessed”. Levels use A1–C2 to indicate reading difficulty. StoryWeaver levels 1/2/3/4 use our approximate A1/A2/B1/B2 guide, labelled “estimated”; this is not an official equivalence. A book-specific assessment takes priority. Other unassessed books are labelled “Not assessed”. Source StoryWeaver levels are retained separately. Classics retain their original English.