Zeller's Congruence

Zeller's congruence is an algorithm devised by Christian Zeller to calculate the day of the week for any Julian or Gregorian calendar date.

Read more about Zeller's Congruence:  Formula, Analysis, Examples

Famous quotes containing the word congruence:

    As for butterflies, I can hardly conceive
    of one’s attending upon you; but to question
    the congruence of the complement is vain, if it exists.
    Marianne Moore (1887–1972)