Question

3. What do you understand by “variable”? Explain each​

Answer 1

Answer:

A variable is a quantity that may change within the context of a mathematical problem or experiment. Typically, we use a single letter to represent a variable. The letters x, y, and z are common generic symbols used for variables.

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Answer 2

Explanation:

for mathematics:

Variable is a alphabetic value used in Mathematics for making and solving equations.

for programming: (on computer)

Variables are data values that can change when the user is asked a question, for example, their age. Variables may change during program execution. A variable is a memory location . It has a name that is associated with that location. The memory location is used to hold data.

1. string variable (str) : Used for a combination of any characters that appear on a keyboard, such as letters, numbers and symbols.

2.Character (or char). Used for single letters.

3.Integer (or int). Used for whole numbers

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