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seen Jan 24 at 20:17

Jan
24
revised On some formulas concerning calendar
An Internet link added.
Jan
24
revised On some formulas concerning calendar
Added a simple version of the formulas.
Jan
22
revised On some formulas concerning calendar
An explanation added.
Jan
22
revised On some formulas concerning calendar
A change of the title
Mar
29
revised How to Compare two multiplications without multiplying?
A relation to an answer given by Arjang was indicated.
Mar
29
revised How to Compare two multiplications without multiplying?
One more sequence added in the remark.
Mar
29
revised How to Compare two multiplications without multiplying?
Certain reformulations were done in order to increase the applicability of the algorithm.
Mar
27
revised How to Compare two multiplications without multiplying?
A remark was added and a problem was formulated.