MATHEMATICA 11 AQUARIUS

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In Astrology, Aquarius is the 11th astrological sign of the Zodiac.


From http://en.wikipedia.org/wiki/11_(number)

An easy way of multiplying numbers by 11 in base 10 is: If the number has: 

1 digit - Replicate the digit (so 2 x 11 becomes 22). 

2 digits - Add the 2 digits together and place the result in the middle (so 47 x 11 becomes 4 (11) 7 or 4 (10+1) 7 or (4+1) 1 7 or 517). 

3 digits - Keep the first digit in its place for the result's first digit, add the first and second digits together to form the result's second digit, add the second and third digits together to form the result's third digit, and keep the third digit as the result's fourth digit. For any resulting numbers greater than 9, carry the 1 to the left. Example 1: 123 x 11 becomes 1 (1+2) (2+3) 3 or 1353. Example 2: 481 x 11 becomes 4 (4+8) (8+1) 1 or 4 (10+2) 9 1 or (4+1) 2 9 1 or 5291. 

4 or more digits - Follow the same pattern as for 3 digits.