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Contents

List of Columns

Chapter 1. Early Edo Period
- Column Influences from Chinese Mathematics $Level 0$
- Column Chinese Remainder Theorem $Level 2$
  - - Congruence Notation and Remainder Theorem $Level 2$
Chapter 2. Seki Takakazu
- Column Pi (Ratio of the Circumference of a Circle to Its Diameter) $Level 1$
  - - Why does π/4=tan^-11=4tan^-1(1/5)-tan^-1(1/239)　hold true? $Level 3$
Chapter 3. Master Institution - Wasan as a Hobby
- Column Sangaku (Mathematical Tablet) $Level 0$
Chapter 4. Wasan as a Practical Science
- Column Pythagorean Theorem $Level 2$
- Column Survey Methods $Level 0$
  - - Survey Instruments and Companion Set $Level 0$
  - - Heron’s Formula $Level 1$
Chapter 5. Introduction of Western Mathematics
- Column Trigonometric Tables $Level 2$