111

227-3.py

@@ -1,10 +1,3 @@
-A = [
-    [0, 3, 4],
-    [1, -1, 1],
-    [2, 1, 2]
-]
-
-b = [1, 2, 3]
 
 # 列主元高斯消元法
 def SovleRowMain(A,b):
@@ -61,7 +54,7 @@ def SovleRowMain(A,b):
 
         P[i][p[i]] = 1
     return P,L,U,b
-
+#打印矩阵
 def prettyPrintMatrix(matrix):
     for row in matrix:
         print(row)
@@ -70,6 +63,15 @@ def prettyPrintMatrix(matrix):
 if __name__ == "__main__":
     # A = np.array(A, dtype=float)
     # b = np.array(b, dtype=float)
+      
+    A = [
+        [0, 3, 4],
+        [1, -1, 1],
+        [2, 1, 2]
+    ]
+
+    b = [1, 2, 3]
+
     P,L,U,x = SovleRowMain(A, b)
     print("P:")
     prettyPrintMatrix(P)
@@ -79,4 +81,5 @@ if __name__ == "__main__":
     prettyPrintMatrix(U)
     print("x:")
     print(x)
-    
+        
+