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22 lines
573 B
Python
22 lines
573 B
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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def get_l(A):
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n = len(A)
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L = [[0 for i in range(n)] for j in range(n)]
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print(L)
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print("")
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for k in range(n):
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L[k][k] = (A[k][k] - sum([L[k][i]**2 for i in range(k)]))**0.5
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for i in range(k+1, n):
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L[i][k] = ((A[i][k] - sum([L[i][j]*L[k][j] for j in range(k)]))
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/ L[k][k])
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print("L_%i%i = A%i%i - sum(L_...)/L_%i%i) = %i" %
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(i, k, i, k, k, k, L[i][k]))
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return L
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A = [[1, 2, 3], [2, 8, 14], [3, 14, 34]]
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print(get_l(A))
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