from sympy import *
matrix = []
print("Enter the entries of the 3x3 matrix:")
for i in range(0,3):
a =[]
for j in range(0,3):
a.append(int(input()))
matrix.append(a)
for i in range(0,3):
for j in range(0,3):
print(matrix[i][j], end = " ")
print()
for i in range(0,3):
for j in range(0,3):
M[i][j]=list(matrix[i][j])
M_rref = M.rref()
print("The Row echelon form of matrix M and the pivot columns : {}".format(M_rref))
將陣列相互傳輸時出現錯誤。我只想將 3x3 矩陣轉換為梯形。TypeError：“int”物件不可迭代，有時 AttributeError：“list”物件沒有屬性“rref”
uj5u.com熱心網友回復：
只需將您的轉換matrix為 SymPy Matrix，如下所示：
from sympy import *
matrix = []
print("Enter the entries of the 3x3 matrix:")
for i in range(0,3):
a =[]
for j in range(0,3):
a.append(int(input()))
matrix.append(a)
for i in range(0,3):
print(matrix[i])
M = Matrix(matrix)
M_rref = M.rref()
print("The Row echelon form of matrix M and the pivot columns : {}".format(M_rref))
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