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How should I make function with lesser dimensionality than the original one by fixing an argument of it:
For example I want to make successor function out of sum function as follows:
def add(x, y):
return x + y
Now I am looking for something like this:
g = f(~, 1) which would be the successor function, i.e. g(x) = x+1.
331
Because functions are objects we can pass them as arguments to other functions. Functions that can accept other functions as arguments are also called higher-order functions. In the example below, a function greet is created which takes a function as an argument.
You can use function handles as input arguments to other functions, which are called function functions. These functions evaluate mathematical expressions over a range of values.
You can write your own function:
def g(y):
return f(2, y)
Or more concisely:
g = lambda y: f(2, y)
There's also functools.partial:
import functools
def f(x, y):
return x + y
g = functools.partial(f, 2)
You can then call it as before:
>>> g(3)
5
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