111

228-17.py

@@ -71,14 +71,14 @@ def IterativeMethod(A, b, err, N):
         A_c = [[A[i][j] for j in range(len(A[0]))] for i in range(len(A))]
         d1 = SovleRowMain(A_c, r1,4)[3]
         x0 = [x0[i] + d1[i] for i in range(len(x0))]
-        print(f"第{count+1}次迭代, x{count+2} = {x0}, r{count+1} = {r1}, d{count+1} = {d1}")
+        print(f"第{count+1}次迭代, r{count+1} = {r1}, d{count+1} = {d1}, x{count+2} = {x0}")
         err_now = max(abs(r1[i]) for i in range(len(r1)))
         count += 1
         if err_now < err:
             break
     return x0,count
 
-
+#把矩阵换成题干的矩阵，b换成题干结果，err精度要求修改##########################
 if __name__ == "__main__":
     A = [
         [51,82],
@@ -91,5 +91,5 @@ if __name__ == "__main__":
 
     x = IterativeMethod(A, b, err, N)[0]
     print(f"解为: {x}")
-
+#先用15题的代码求范数与逆矩阵