# Int

Programming basics[1]

Int (signed integers): They are often called just integers or ints, are positive or negative whole numbers with no decimal point.[2]

## Signed and unsigned

There is a deeper conversation about signed and unsigned numbers. You should know this:

• A signed numberA unit of abstract mathematical system subject to the laws of arithmetic. can be positive or negative
• An unsigned numberA unit of abstract mathematical system subject to the laws of arithmetic. can only be positive

## Difference between an int and a float

Integers and floats are two different kinds of numerical data. An integerA natural number, a negative of a natural number, or zero. (more commonly called an int) is a numberA unit of abstract mathematical system subject to the laws of arithmetic. without a decimal point. A float is a floating-point numberA unit of abstract mathematical system subject to the laws of arithmetic., which means it is a numberA unit of abstract mathematical system subject to the laws of arithmetic. that has a decimal place. Floats are used when more precision is needed.[3]

## Example

In PHP: You will remember PHP isn't a strictly typed language (although it can be set to be).

```<?php
\$a = 1234; // decimal number
\$a = -1234; // a negative number
?>
```

In Python:

```# decimal number:
a = 1234
# a negative number:
a = -1234
```

In Javascript:

```// decimal number:
var a = 1234;
// a negative number:
var a = -1234;
```

## Standards

• DefineGive the precise meaning of a word, phrase, concept or physical quantity. the terms: variable, constant, operator, object.