Number theory

Doubly even order Magic Square

We know to construct the magic square of odd order, constructing the even order magic square is little tricky, we solve this by dividing the even numbers into doubly even and singly even. Let us first see about the doubly-even here, because singly-even comprises odd and doubly-even magic square constructing methods.

The following video will brief you about building the doubly-even magic squares.

MAGIC SQUARE

Magic square – It is a square matrix, i.e., it has equal number of rows and columns. The sum of the numbers in any rows, columns and diagonals is always the same.

Creating magic squares are very easy if we follow certain rules, They are clearly explained with an example in the following video.

‘2021’ is the year of partner in prime.

Happy New year!!!

DICE FACT

The opposite sides of a dice always add up to seven.

TWIN PRIME CONJECTURE

There are infinitely many prime numbers ‘p’ such that ‘p+2’ is also prime. Such a kind of pairs of prime numbers are called as twin primes.

The Golden ratio Φ (phi)

Here the straight line AB is divided into AC and CB of  measure  ‘a’ and ‘b’ respectively.

we say that ‘a’ and ‘b’ are in the golden ratio, if

the ratio of the whole sum to the larger measure equals to the ratio of the larger measure to the smaller measure.

Φ=(a+b)/a =a/b

The value of  Φ is$ (1+√5)/2 =1.618…$