Module calendrica-egyptian-armenian

Egyptian and Armenian calendar conversions.

Ported from "Calendrical Calculations" (4th edition) by Nachum Dershowitz and Edward M. Reingold. Original Lisp code (CALENDRICA 4.0) is Apache 2.0 licensed.

Functions

fixed_from_egyptian (e_date) Fixed date of Egyptian date `e_date`.
egyptian_from_fixed (date) Egyptian date {year, month, day} equivalent to fixed `date`.
fixed_from_armenian (a_date) Fixed date of Armenian date `a_date`.
armenian_from_fixed (date) Armenian date {year, month, day} equivalent to fixed `date`.


Functions

fixed_from_egyptian (e_date)
Fixed date of Egyptian date `e_date`.

Parameters:

  • e_date table Egyptian date {year, month, day}.

Returns:

    number Fixed date.
egyptian_from_fixed (date)
Egyptian date {year, month, day} equivalent to fixed `date`.

Parameters:

  • date number Fixed date.

Returns:

    table {year, month, day}
fixed_from_armenian (a_date)
Fixed date of Armenian date `a_date`. Same structure as the Egyptian calendar with a different epoch.

Parameters:

  • a_date table Armenian date {year, month, day}.

Returns:

    number Fixed date.
armenian_from_fixed (date)
Armenian date {year, month, day} equivalent to fixed `date`.

Parameters:

  • date number Fixed date.

Returns:

    table {year, month, day}
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