fix func -> func_name for clarity

src/taylor.py

@@ -13,7 +13,7 @@ def nth_derivative(func, n):
     return None
 
 @cache
-def taylor(func, x, N):
+def taylor(func_name, x, N):
     """
         Returns the taylor expansion of func as a function of x, centered at 'b'.
         Since the 0th term is just the function itself (which we don't have the answer for yet),
@@ -23,13 +23,13 @@ def taylor(func, x, N):
     """
     return None
 
-def taylor_at(func, b, f_at_b, N):
+def taylor_at(func_name, b, f_at_b, N):
     """
         Returns taylor(-), evaluated by plugging in f_at_b for 'q' and b for 'b'.
     """
     return None
 
-def max_error(func, a, x, n):
+def max_error(func_name, a, x, n):
     """
     Calculates the maximum error of the estimate below using Taylor's Theorem
     in the following way.
@@ -53,7 +53,7 @@ def max_error(func, a, x, n):
     return None
 
 @cache
-def estimate(func, x, a, func_at_a, N):
+def estimate(func_name, x, a, func_at_a, N):
     """
         Uses the taylor expansion centered around a to compute an estimate for func(x).
     """