Update maths/trapezoidal_rule.py

Co-authored-by: Tianyi Zheng <[email protected]>

Author: jurichar

maths/trapezoidal_rule.py

@@ -9,7 +9,7 @@
 """
 
 
-def method_1(boundary, steps):
+def trapezoidal_rule(boundary, steps):
     """
     This function implements the extended trapezoidal rule for numerical integration.
     The function f(x) is provided below.