111

227-7.py

@@ -8,19 +8,21 @@ def ZGsolve(A,b):
             beta[i] = A[i][2] / A[i][1]
         else:
             beta[i] = A[i][2] / (A[i][1] - A[i][0]*beta[i-1])
-
+    print("beta:")
+    print(beta[:-1])
     for i in range(n):
         if i == 0:
             b[i] = b[i] / A[i][1]
         else:
             b[i] = (b[i] - A[i][0]*b[i-1]) / (A[i][1] - A[i][0]*beta[i-1])
-
+    print("y:")
+    print(b)
     for i in range(n-2,-1,-1):
         b[i] = b[i] - beta[i]*b[i+1]
 
     return b
 
-
+#把A,b换成题干的数值###########################################
 if __name__ == "__main__":
     # 储存追赶法A矩阵
     A = [