- #1
roger
- 318
- 0
why can't functions be one to many ? from reals to reals ?
A function is a block of code that performs a specific task and can be reused multiple times throughout a program. It typically takes in input parameters, performs operations on those parameters, and returns a result.
The purpose of a function is to break down a complex problem into smaller, more manageable pieces. By using functions, programmers can organize their code and make it easier to read, debug, and maintain. They also allow for code reusability, reducing the amount of duplicate code in a program.
In most programming languages, a function is defined using the function
keyword, followed by the function name, a set of parentheses for any input parameters, and a set of curly braces that contain the code to be executed.
A function declaration is a statement that defines a function and is hoisted to the top of its scope, meaning it can be called before it is defined. A function expression, on the other hand, is a function that is assigned to a variable or passed as an argument to another function. It is not hoisted and can only be called after it has been defined.
To call a function, you simply use its name followed by a set of parentheses. If the function has any required parameters, you must pass in the appropriate arguments within the parentheses. The function will then execute and return a result if necessary.