Ramanujan’s Magic square. * Add the four numbers in the rows, the columns and along the diagonals of this square. * What is the sum? * Is it the same every time? * What is the peculiarity? * Look at the numbers in the first row, 22 – 12 – 1887. Find out why this date is special. Obtain and read a biography of the great Indian mathematician Srinivasa Ramanujan.

Ramanujan’s Magic square. * Add the four numbers in the rows, the…

Question

Ramanujan’s Magic square.

Add the four numbers in the rows, the columns and along the diagonals of this square.
What is the sum?
Is it the same every time?
What is the peculiarity?
Look at the numbers in the first row, 22 – 12 – 1887. Find out why this date is special.

Obtain and read a biography of the great Indian mathematician Srinivasa Ramanujan.

✓

Answer

Sum of the numbers in each row:
i. 22 + 12 + 18 + 87 = 139
ii. 88 + 17 + 9 + 25 = 139
iii. 10 + 24 + 89 + 16 = 139
iv. 19 + 86 + 23 + 11 = 139

Sum of the numbers along the diagonals:
i. 22 + 17 + 89 + 11 = 139
ii. 87 + 9 + 24 + 19 = 139

Sum of the numbers in each column:
i. 22 + 88 + 10 + 19 = 139
ii. 12 + 17 + 24 + 86 = 139
iii. 18 + 9 + 89 + 23 = 139
iv. 87 + 25 + 16 + 11 = 139

∴ We observe that the sum of the numbers in each of the rows, the columns and along each diagonal remains the same every time. The numbers in the first row 22 – 12 – 1887 is the birth date of Srinivasa Ramanujan.

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