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what is the point of functions in math. To locate the local maxima and minima from a graph we need to observe the graph to determine where the graph attains its highest and lowest points respectively within an open interval. Function in mathematics an expression rule or law that defines a relationship between one variable the independent variable and another variable the dependent variable.
The notation f x talks about a function f. Example People and their heights ie. Its a good question.
The math module is a standard module in Python and is always available.
A function takes elements from a set the domain and relates them to elements in a set the codomain. The whole point is to think in these more general terms. The graph is going up when read from left to right. A function relates inputs to outputs.