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Let's say I have two python functions f and g:
def f(x):
y = x**2 + 1
return y
def g(x):
a = x**2
b = a + 1
return b
These two functions are clearly functionally equivalent (both return x**2 + 1).
My definition of functionally equivalent is as follows:
If two functions f and g always produce the same output given the same input, then f and g are functionally equivalent.
Further, let's say no global variables are involved in f and g.
Is it possible to automatically determine (without human inspection) if python functions f and g are functionally equivalent?
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We define two functions. The first function prints the module documentation string. The second returns the path of the module. Function may or may not return a value.
Basic Syntax for Defining a Function in Python In Python, you define a function with the def keyword, then write the function identifier (name) followed by parentheses and a colon. The next thing you have to do is make sure you indent with a tab or 4 spaces, and then specify what you want the function to do for you.
all functionIt returns True if all boolean values are True in the sequence; otherwise, it returns False .
By Rice's Theorem, no. If you could do this, you could solve the halting problem. (This is true even if f and g are always guaranteed to halt.)
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