Dated Magic Square

How to make a Dated Magic Square?

1.    In the first row, write down the date for which you want to create the Magic square.

Remember to split the year into two. I have taken the date as 13.11.2011.

 

2.    Write any three consecutive numbers in the boxes as shown below.

 3.    Calculate the magic constant which is the sum of elements of each row, column, diagonal); by summing up the elements of first row. Magic constant =13+11+20+11 = 55.

4.    Now, calculate the element in row2, column 3 by subtracting the other 3 elements of that sub-square by magic constant.

55 – (20+11+6) = 18.

5.    Now, find the blank box of column 3 by subtracting the sum of other elements from magic constant. 55-(20+18+4) = 13.

6.    Follow the same way to complete the row 2, column 2 element from central sub-square. 55-(18+13+5) =19

7.    2^nd row 1^st column will be 55 – (19 + 18 + 6) =12

           4^th row 2^nd column will be 55 – (11 + 19 + 5) = 20

 8.    4^th row 1^st column will be 55 – (11 + 18 + 5) = 21

            4^th row 4^th column will be 55 – (13 + 19 + 13) = 10

9.    3^rd row 1^st column = 55 – (13 + 12 + 21) =9

            3^rd row 4^th column = 55 – (11 + 6 + 10) = 28

Observe that when you add the numbers given in each row, each column or even diagonally, you get the same sum.

Find the error

Find the error.

11 Great Mathematicians

Today on 11.11.11, I thought of remembering the work of 11 great Mathematicians of the world.

Euclid

Archimedes

Carl Gauss

Euler

Pierre De Fermat

J.L Lagrange

Pythagoras

Ramanujan

Bhramagupta

Fibonacci

Bhaskaracharya