Functions and Parameters C++ - Reading Assignment

C++ Programming
#201

Function parameters are placeholders for function data inputs. We can use them to represent values given to the function at the time of the function call.

Functions that don’t take parameters will return the same value. Without parameters, the return value of a function is not mutable.
If we give parameters to a function, anytime we call it, we can pass in different arguments to it and get a different result.

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#202
  1. It’s a variable used in a function. These variables are always initialized with a value provided by the caller of the function
  2. to create more complicated functions
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#203
  1. The parameters of a function are the input variables that the function’s output values depend upon. More precisely, the values that the parameters are assigned when a function is called are needed to execute the code that a function comprises and to determine the output value that the function returns (unless the function’s return type is “void”).
  2. Functions, in essence, are rules of assignment. They assign output values to input values, and the rules of assignment are specified by using the variables that represent the input values. So without input variables (or parameters), the rules of assignment cannot be defined and the function’s return value cannot be specified (unless the function happens to be constant).
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#204
  1. It is a variable that is used inside a function where the value is provided by the caller.
  2. Functions needs parameters to make a function reusable.
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#206

1. What is a function parameter?
A variable used in a function. They are always initialized with a value provided by the caller of the function.

2. Why do functions need parameters?
They are the input for the function to work.

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#207

1. What is a function parameter?
The code between the parenthesis after the function identifier.

2. Why do functions need parameters?
When a function is using parameters the function knows which code to take data from and perform an execution.

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#208

A variable that is called and used in the function.

They don’t, but if you want them to be more useful you will give the function certain variables to execute the code, so that you can do more complicated tasks without having to reprogram the same thing over.

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#209
  1. It is a variable used in a function where it is always initialized with a value provided by the caller of the function.
  2. A function needs parameters if any values are to be passed to the function. This is how we enable input to the function. The input values in this case would be called arguments.
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#210
  1. A function parameter is a variable used in a function which is always initialized with a value provided by the caller of the function.
  2. So that the function have data it can work with
#211

What is a function parameter?

A function parameter is a variable which is instantiated and initialized within the parenthesis of a function each parameter being delineated by a comma.

Why do functions need parameters?

We need function parameters to have the ability to pass values from one function to another. If we didn’t have parameters a callee function would have no awareness of a variable declared in its caller function.

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#212

1. What is a function parameter?
When user supplies values to a function. They are initially set within the function call.

2. Why do functions need parameters?
They allow to give functions the values to work with the code inside them.

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#213

  1. A variable used in a function.

  2. In order to pass info to a function being called.

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#214

1. What is a function parameter?
Function is a segment of code that is executed when called

2. Why do functions need parameters?
To pass data. Parameters act as variables inside the function

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#215

They are variables which will be initiated with arguments

To pass values of variables between functions.

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#216

1. What is a function parameter?
A function parameter is a value passed on to the function by the caller. The type of the parameter is defined in the definition of the function.

2. Why do functions need parameters?
Parameters are not mandatory (there are functions not needing any parameters) but in order for functions to use values from the caller they need to be provided to the function. Parameters do fulfill this task.

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#217
  1. Variable that is used in function and input for it will be provided by caller of the function.
  2. Parameters are needed to pass information their function, but there are not mandatory.
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#218

1. What is a function parameter?

function parameters are the value inputs to the subroutine that will return a given output that is determined by the structure of the function,

2. Why do functions need parameters?

from what I understand so far, functions do not ‘need’ parameters as there are these void functions which I haven’t really wrapped my brain around yet. Now, I think what this questions is aiming at is ‘what purpose’ are parameters in functions? This is my guess because this is new to me and I am trying to figure this stuff out. so, functions need parameters to actually carry out any structured routine otherwise they are structureless? The more arguments one can organize in the functions statements makes the function more complex thus able to build more structure.

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#219

1. What is a function parameter?
A function parameter is a variable used in a function. Function parameters work almost identically to variables defined inside the function, but with one difference: they are always initialized with a value provided by the caller of the function.

2. Why do functions need parameters?
Parameters are needed to pass information to their function.

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#220

Yes you are right :slight_smile: I didn’t give much thought to the structure of the question until now, maybe we should fix it.

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#221

  1. What is a function parameter?
    A function parameter acts like a defined variable in the function, except that the value is provided by the caller of the function (as an argument), instead of being assigned directly to the variable (by the author of the program). Function parameters are defined within the parenthesis of the function declaration (after the function identifier).

  2. Why do functions need parameters?
    Parameters allow the reusability of a function (or, to put it another way, a computational framework) that can compute or retrieve different outputs, depending on the input data (arguments) provided by the caller of the function. Parameters are important because by having parameters, a single function has the ability to return an innumerable amount of values, due to its ability to perform a defined set of tasks, based on an innumerable amount of arguments.

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