Tamura-Kanada Circuit Method/Example/Mistake
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Source Work
1986: David Wells: Curious and Interesting Numbers:
- The Dictionary
- $3 \cdotp 14159 \, 26535 \, 89793 \, 23846 \, 26433 \, 83279 \, 50288 \, 41972 \ldots$
Mistake
- Here are the values of $\pi$ after going round just $3$ times on a pocket calculator. It is already correct to $5$ decimal places!
\(\text {(1)}: \quad\) | \(\ds \) | \(\) | \(\ds 2 \cdotp 91421 \, 35\) | |||||||||||
\(\text {(2)}: \quad\) | \(\ds \) | \(\) | \(\ds 3 \cdotp 14057 \, 97\) | |||||||||||
\(\text {(3)}: \quad\) | \(\ds \) | \(\) | \(\ds 3 \cdotp 14159 \, 28\) |
It is in fact seen that the value for $\pi$ is actually correct to $6$ decimal places, not $5$.
In David Wells: Curious and Interesting Numbers (2nd ed.), this has been corrected.
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $3 \cdotp 14159 \, 26535 \, 89793 \, 23846 \, 26433 \, 83279 \, 50288 \, 41972 \ldots$