What is function of function?
Answer:
An output that is dependant on the output of another system.
Like, the time it takes to bake cookies is a function of the ingredients you put in, but the ingredients you put in could be a function of the altitude you are cooking at.
Or in mathematics, say
f(x) = C*g(x)
were c is a constant, and g(x) is another function
You evaluate the inner function first, then whatever you get from that, you evaluate using the outer function:
For example: f(x)=x*x and g(x)=2*x...
Evaluate f(g(10)). Evaluate the inner function g(10) first. This gives 20. Now evaluate the outer function f(20). This gives 400.
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