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SquaresR

SquaresR[d, n]
gives the number of ways r_d(n) to represent the integer n as a sum of d squares.
  • r_d(n) gives the number of ways to write , where the ni can be positive, negative or zero.
EXAMPLESCLOSE ALL
Basic Examples   (3)
Number of ways to represent 45 as a sum of two squares:
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The number of integer points on a circle of radius :
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Base 2 logarithm of the number of integer points on a sphere of dimension n:
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