Definition of square number in English:

square number

Line breaks: square num¦ber

noun

The product of a number multiplied by itself, e.g. 1, 4, 9, 16.
More example sentences
  • If we can express a square number also as the sum of two other square numbers then Pythagoras' Theorem tells us that we have three sides of a right-angled triangle and this is Fibonacci's first Proposition.
  • In every right-triangle, if the double product of the legs be either added or subtracted from the square of the hypotenuse, both the sum and the remainder will be square numbers.
  • Fibonacci first notes that square numbers can be constructed as sums of odd numbers, essentially describing an inductive construction using the formula n 2 + = 2.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day ween
Pronunciation: wiːn
verb
be of the opinion; think or suppose