: something that changes or that can be changed : something that varies. : a quantity that can have any one of a set of values or a symbol that represents such a quantity. See the full definition for variable in the English Language Learners Dictionary. variable. adjective.
What is a variable short answer?
Answer: A variable is a datatype whose value can not be fixed . It can be change based on other parameters. For example, Let X is a variable so that its value can be anything like 1,2,3...... or a,p,r, or any word. It can not be fixed.
What is variable define with example?
The definition of a variable is something that can change , or is a quantity in an equation that can change its value. ... In the equation 2x+3 > 0, x is an example of a variable.
What is called variable?
A variable is a symbolic name for (or reference to) information . ... They are called variables because the represented information can change but the operations on the variable remain the same. In general, a program should be written with “Symbolic” notation, such that a statement is always true symbolically.
What is variable in your own words?
noun. something that may or does vary or change ; a variable feature or factor. Mathematics, Computers. a quantity or function that may assume any given value or set of values. a symbol that represents this.
What are 3 types of variables?
These changing quantities are called variables. A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled .
How do you define variables?
1a : a quantity that may assume any one of a set of values . b : a symbol representing a variable. 2a : something that is variable. b : a factor in a scientific experiment that may be subject to change.
What are the 5 types of variables?
- Independent variables. An independent variable is a singular characteristic that the other variables in your experiment cannot change. ...
- Dependent variables. ...
- Intervening variables. ...
- Moderating variables. ...
- Control variables. ...
- Extraneous variables. ...
- Quantitative variables. ...
- Qualitative variables.
How do you explain variables to students?
One way to explain it to a child is that it is the variable that the child can change during the experiment . For example, in an experiment on the effect of light on plant growth, the child can control how much light a plant receives. He can put one plant near a window and another plant in a dark closet.
What are the five data types?
- String (or str or text). Used for a combination of any characters that appear on a keyboard, such as letters, numbers and symbols.
- Character (or char). Used for single letters.
- Integer (or int). Used for whole numbers.
- Float (or Real). ...
- Boolean (or bool).
Why are variables used?
Variables are used to store information to be referenced and manipulated in a computer program . They also provide a way of labeling data with a descriptive name, so our programs can be understood more clearly by the reader and ourselves. ... Their sole purpose is to label and store data in memory.
How do you find variables?
Calculate total variable cost by multiplying the cost to make one unit of your product by the number of products you’ve developed . For example, if it costs $60 to make one unit of your product and you’ve made 20 units, your total variable cost is $60 x 20, or $1,200.
Who invented variables?
At the end of the 16th century, François Viète introduced the idea of representing known and unknown numbers by letters, nowadays called variables, and the idea of computing with them as if they were numbers—in order to obtain the result by a simple replacement.
How do you use the word variable in a sentence?
- With this variable weather, it can be hot today and cold tomorrow.
- The rates at this hotel are variable and may change depending upon demand and local events.
- Under the terms of the loan, we have a variable interest that may fluctuate but will never exceed ten percent.
What are variables in grammar?
Variable nouns are nouns which combine the behaviour of count and uncount nouns . They are like count nouns when they refer to an instance or more than one instance of something, e.g. an injustice; injustices, or to individual members of a class, e.g. a cake; cakes.
How many types of variables are there?
| Type of variable What does the data represent? Examples | Nominal variables Groups with no rank or order between them. Species names Colors Brands |
|---|
