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What is a function of a variable?
A variable is a named memory address in which a value may be stored and mutated.
What is constant and variable?
A variable is a named object that is mutable. A constant is a named object that is immutable.
Why must numeric values be assigned to variables when comparing results?
In order to compare any two values, both values must be stored somewhere otherwise it would be impossible for the machine to refer to those values let alone operate upon them. Typically we store variables in main memory, however values can also be stored directly in the machine's registers. These are known as register variables and the only practical difference between a register variable and an ordinary variable is that we cannot take the memory address of a register variable (because it has no address to take).If we can take the address of a variable then that variable is said to have identity because it exists in memory and we can identify it solely by its address. When comparing values that have identity, we can either compare the values themselves or we can compare their identities. The latter helps us determine whether two values are the same variable or not.The address of a variable may or may not be known at compile time. If the address is known at compile time then we can name the variable and refer to it by either its name or its address. Variables generated at runtime are anonymous and can only be referred to by their address (which we must store in another variable known as a pointer variable). Conversely, register variables must always be named, but they have no identity.Regardless of whether a variable has a name, an identity, or both, the machine simply cannot operate upon values without using variables.
Which is the best describes the meaning of the function notation g(y)?
It means that there is a function - which is here named with the generic name "g"; it might be any function - and that this function depends on variable "y".
The compound CuCl2 is named copperII chloride why is a roman numeral is used in one name but not the other?
The Transition metals can have variable charges depending on what they are bonded to. In this example the Copper atom is deficient by two electrons one for each Chlorine atom.
What is the main variable?
Variables are names for which the value may be altered. That is, the value of a name is variable. For example: int x; // Declares a variable named x. int y = 0; // Declares and initialises a variable named y. x = 5; // Changes the value of the variable named x. y = x; // Changes the value of the variable named y. By contrast, constants are names for which the value does not change: const int z = 10; // Declares a constant named z, which will always have the value 10.
What does constants variable mean in science?
A constant variable is one that is not the independent variable (the one you are changing) or the dependent variable (the one you change). Constant variables are so named because in order for the experiment to be legitimate, it is expected that the scientist control them, thus keeping them constant across all trials. This ensures that changes in the dependent variable are only the result of changes in the independent variable.
What doe constant mean in science?
A constant variable is one that is not the independent variable (the one you are changing) or the dependent variable (the one you change). Constant variables are so named because in order for the experiment to be legitimate, it is expected that the scientist control them, thus keeping them constant across all trials. This ensures that changes in the dependent variable are only the result of changes in the independent variable.
What is a variable plus a variable?
A variable is a named memory location for which the contents are volatile. The antonym of variable is constant.
What is a function of a variable?
A variable is a named memory address in which a value may be stored and mutated.
How can you create your own variable named while and make it hold a function value?
You cannot create a variable named "while", since that is a reserved word.
What defines a variable?
A variable is a named storage location that can hold any data value. A variable has two associated values ; r value and l value.
What is constant and variable?
A variable is a named object that is mutable. A constant is a named object that is immutable.
What declares a variable named intNumSold?
In C, try this line: int intNumSold;
What variable precedes the other when thinking of independent and dependent variables?
The independent variable is named first. In the Cartesian plane, this means you write (X, Y).
What is a variable used for in Python?
A variable is used to store information. As an example say you are asking someone for their favorite food, and want to store the answer in a variable called favoriteFood: favoriteFood = input("What is your favorite food?") Now if you print the value of favoriteFood (using print(FavoriteFood)) you will see that it has been saved in that variable. You can store any type in a variable, such as number, a string, or even an object.
What is a variable transformer?
A variable transformer is capable of changing its output voltage from 0 to maximum output or over a specific range. It is also named an adjustable transformer.
