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public python v1 · immutable# Python stdlibfrom math import sqrt, pifrom random import randint# Numpy stufffrom Numeric import *from MLab import eyefrom LinearAlgebra import singular_value_decomposition, determinantfrom RandomArray import random, normal# Biopython stufffrom Bio.PDB import *S=eye(3,3, typecode='d')S[2,2]=-1print S**3.8