- #1
r4nd0m
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Is there any name for the functions for which [tex]|f(x+y)| \leq |f(x)| + |f(y)|[/tex]?
r4nd0m said:Is there any name for the functions for which [tex]|f(x+y)| \leq |f(x)| + |f(y)|[/tex]?
These functions are called mathematical functions or simply functions.
The purpose of functions is to perform a specific task or calculation based on given inputs and return an output. They help in organizing and simplifying complex programs.
A function has three main components: input parameters, a function body, and a return statement. The input parameters are the values that are passed into the function, the function body contains the code that performs the task, and the return statement specifies the output of the function.
Yes, functions can be nested inside other functions. This means that one function can call another function within its code to perform a specific task.
Built-in functions are already defined in the programming language and can be used directly without any additional code. User-defined functions, on the other hand, are created by the programmer to perform a specific task and can be reused multiple times in a program.