Stairway Constants

• Stairway Constants, part $[0,1)$

  Originally published in mathNEWS v142i1 on 2020-01-17. Reposted 2026-04-20.

  $0$, $\epsilon$, $L$, $P$, $\gamma$, and $G$

• Stairway Constants, part $[1,2)$

  Originally published in mathNEWS v142i2 on 2020-01-31. Reposted 2026-04-20.

  $1$, $S_1$, $\sigma_1$, $P$, $\sqrt{2}$, and $\phi$

• Stairway Constants, part $[2,3)$

  Originally published in mathNEWS v142i3 on 2020-02-14. Reposted 2026-04-20.

  $2$, $\theta_G$, $K$, $e$, and $F$

• Stairway Constants, part $[3,4.5)$

  Originally published in mathNEWS v142i4 on 2020-02-28. Reposted 2026-04-20.

  $3$, $\pi$, $\tfrac{22}{7}$, $S$, $\Psi$, $4$, and $\sqrt{\tau e} = \sqrt{2 \pi e}$

• Stairway Constants, part $[4.5,7]$

  Originally published in mathNEWS v142i5 on 2020-03-13. Reposted 2026-04-20.

  $F$, $\delta$, $5$, $\tfrac{\pi^3}{6}$, $8 \tfrac{\pi^2}{15}$, $6$, $\tau$, $2^e$, and $7$

• Stairway People

  Originally published in mathNEWS v144i3 on 2020-10-23. Reposted 2026-04-20.

  The people who made the stairway constants possible!

• Stairway Constants, $\pi$NEWS

  Originally published in mathNEWS v148i5 on 2022-03-18. Reposted 2026-04-22.

  An update on the world record for computing digits of $\pi$.

• The $100{,}000{,}000{,}000{,}000$^th Digit of $\pi$ is $0$

  Originally published in mathNEWS v151i3 on 2023-03-03. Reposted 2026-04-22.

  Who asked?

• A $\pi$ty

  Originally published in mathNEWS v154i5 on 2024-03-15. Reposted 2026-04-07.

  One of the most redundant computations in the history of computing.

• Stairway Constants, part $1.36945140399377\dots$

  Originally published in mathNEWS v154i6 on 2024-03-29. Reposted 2026-04-22.

  A new stairway constant!