You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
33 lines
409 B
33 lines
409 B
4 months ago
|
#!/usr/bin/env python3
|
||
|
|
|
||
|
|
import sys
|
||
|
|
import numpy as np
|
||
|
|
import scipy.linalg as la
|
||
|
|
|
||
|
|
n = 3
|
||
|
|
|
||
|
|
if sys.argv.__len__()!=n*n+1:
|
||
|
|
print( "bad # args" )
|
||
|
|
sys.exit()
|
||
|
|
|
||
|
|
|
||
|
|
A = np.empty([n,n], dtype='f8')
|
||
|
|
|
||
|
|
for j in range(n):
|
||
|
|
for i in range(n):
|
||
|
|
A[j][i] = sys.argv[1+j*n+i]
|
||
|
|
|
||
|
|
print( "A:" )
|
||
|
|
print( A )
|
||
|
|
|
||
|
|
Q,R,P = la.qr(A, pivoting=True)
|
||
|
|
|
||
|
|
print( "Q:" )
|
||
|
|
print( Q )
|
||
|
|
|
||
|
|
print( "R:" )
|
||
|
|
print( R )
|
||
|
|
|
||
|
|
print( "P:" )
|
||
|
|
print( P )
|