Return how many integer grid points there are inside a 3D sphere of radius r centred at (0,0,0) (including points on the edge).
Neither string operations nor interpolations are allowed!
Back to basics 8 - Matrix Diagonals
Back to basics 13 - Input variables
Wrapping the Tower of Pisa
Generate a NaN...on purpose
Hexagonal Tiling Dots in a Circle
Generalized Laguerre polynomials
Chebyshev polynomials of the 1st Kind
Triangular Tiling Dots in a Circle
Dots in a Circle
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