111

159-1.py

@@ -2,7 +2,7 @@ def fx(x):
     return x**4-3*x+1
 
 
-def SolveByDivTwo(x1,x2,err):
+def erfen(x1,x2,err):
     while abs(x2-x1) >= err:
         x = (x1+x2)/2
         if fx(x) * fx(x1) < 0:
@@ -15,6 +15,5 @@ def SolveByDivTwo(x1,x2,err):
 if __name__ == "__main__":
     x1 = 0.3
     x2 = 0.4
-    err = 0.5e-5
-    root = SolveByDivTwo(x1, x2, err)
-    print(f"Root: {root:.5f}")
+    root = erfen(x1, x2, 0.5e-5)
+    print(f"解为: {root}")