我正在尝试计算一个以矩阵为参数的代码,并使用改良的Gram-Schmidt算法计算并打印QR分解。我很想计算q [i]回来对我来说是无效的。非常感谢您的帮助。
def twoNorm(vector):
'''
twoNorm takes a vector as it's argument. It then computes the sum of
the squares of each element of the vector. It then returns the square
root of this sum.
'''
# This variable will keep track of the validity of our input.
inputStatus = True
# This for loop will check each element of the vector to see if it's a number.
for i in range(len(vector)):
if ((type(vector[i]) != int) and (type(vector[i]) != float) and (type(vector[i]) != complex)):
inputStatus = False
print("Invalid Input")
# If the input is valid the function continues to compute the 2-norm
if inputStatus == True:
result = 0
# This for loop will compute the sum of the squares of the elements of the vector.
for i in range(len(vector)):
result = result + (vector[i]**2)
result = result**(1/2)
return result
vector = [1, 0, 1]
print(twoNorm(vector))
def QR(matrix):
if len(matrix[0]) != len(vector):
print('Invalid')
else:
for i in vector:
q[i] = []
r[i][i] = twoNorm(vector)
q[i].append(i * (1/(r[i][i]))
return q[i]
matrix = [[1, 2], [0, 1], [1, 0]]