fix: memperbaiki variabel algoritma rieman

Author: Ateng-labrador

math/rieman_integral.py

@@ -48,14 +48,14 @@ def f(x):
     print(rieman_integral(f, 0, 1, 1, "tengah"))  # 0.5
 
     # persamaan 4/(1+x^2)
-    def f(x):
+    def g(x):
         return (4) / (1 + x**2)
-    print(rieman_integral(f, 0, 1, 1000, "tengah"))  # 3.1415927369231227
+    print(rieman_integral(g, 0, 1, 1000, "tengah"))  # 3.1415927369231227
 
     # Persamaan sin
-    def f(x):
+    def y(x):
         return math.sin(x)
-    print(rieman_integral(f, 0, math.pi / 2, 100, "kiri"))  # 0.9921254566056331
+    print(rieman_integral(y, 0, math.pi / 2, 100, "kiri"))  # 0.9921254566056331
 
 
 if __name__ == "__main__":