Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

Pages: **1**

**ShivamS****Member**- Registered: 2011-02-07
- Posts: 3,640

I recently saw videos of Arthur Benjaman (the "Mathemagician") and saw him calculate day of the week in 3 seconds given the date and month. I checked out Zeller's congruence and then found an algorithm which isextremely simple.

http://www.gregmiller.net/astro/dow.html

Offline

**DeanPemberton****Member**- From: USA
- Registered: 2014-10-30
- Posts: 21
- Website

Excellent. The formula in the site you have suggested is excellent, i have also tied to calculate some days of the weak and got succeed by the formula.

Thank for sharing. Now i can also calculate only in 3 minutes.

Offline

Pages: **1**