peteketcham

#!/usr/bin/env python3
"""
Project Euler, Problem 596
https://projecteuler.net/problem=596

Let be T(r) the number of integer quadruplets x, y, z, t such that x**2 + y**2 + z**2 + t**2 ≤ r**2.
In other words, T(r) is the number of lattice points in the four-dimensional hyperball of radius r.

You are given that T(2) = 89, T(5) = 3121, T(100) = 493490641 and T(10**4) = 49348022079085897.

peteketcham

#!/usr/bin/env python3
"""
Project Euler, Problem 596
https://projecteuler.net/problem=596

Let be T(r) the number of integer quadruplets x, y, z, t such that x**2 + y**2 + z**2 + t**2 ≤ r**2.
In other words, T(r) is the number of lattice points in the four-dimensional hyperball of radius r.

You are given that T(2) = 89, T(5) = 3121, T(100) = 493490641 and T(10**4) = 49348022079085897.

peteketcham

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