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227-4.py

@@ -22,12 +22,24 @@ def SqrtSolve(A,b):
                 for k in range(j):
                     L[getIndexFromDownMatrix(i,j)] -= L[getIndexFromDownMatrix(i,k)]*L[getIndexFromDownMatrix(j,k)]
                 L[getIndexFromDownMatrix(i,j)] /= L[getIndexFromDownMatrix(j,j)]
-    print(L)
+    # 打印下三角矩阵
+    print("下三角矩阵 L:")
+    for i in range(n):
+        L_row = []
+        for j in range(n):
+            if j <= i:
+                L_row.append(L[getIndexFromDownMatrix(i,j)])
+            else:
+                L_row.append(0)
+        print(L_row)
+    # print(L)
     for i in range(n):
         for k in range(i):
             b[i] -= L[getIndexFromDownMatrix(i,k)]*b[k]
         b[i] /= L[getIndexFromDownMatrix(i,i)]
-
+    # 打印 b 向量
+    print("y 向量:")
+    print(b)
     for i in range(n-1,-1,-1):
         for k in range(i+1,n):
             b[i] -= L[getIndexFromDownMatrix(k,i)]*b[k]
@@ -42,5 +54,5 @@ if __name__ == "__main__":
 
     b = [10,5,4]
 
-    print("x:")
-    print(SqrtSolve(A,b))
+    # print("x:")
+    print("x: \n",SqrtSolve(A,b))