# FLR

`flr( a )`

flr | "floor" |

a | a number |

The **flr( a )** function is used to round down the given number, `a`

, and return an integer (whole number).

For example, if we call `flr(1.99)`

, the function will round down to the nearest whole number and return that value. Therefore, it will return `1`

.

```
value = flr(1.99)
print(value) --prints 1
```

If we pass a negative number, for example `flr(-5.3)`

, the function will return `-6`

since it `is the nearest whole number down.`

```
value = flr(-5.3)
print(value) --prints -6
```

There are many reasons you will want to "floor" a number. One common use is with the `time()`

function, which almost always returns a decimal value, but you may want to simply know the number of seconds passed without any decimal places.

```
function _draw()
cls()
millisec = time()
sec = flr( millisec )
print("time="..millisec,20,40,8)
print("floored="..sec,20,60,12)
end
```

#### Shorthand

It is common to want to floor a number after dividing, and there is a shorthand for that, the backslash ( `\`

).

```
--longform
a = flr(10/3)
--shorthand
b = 10\3
```

It is also common to want to floor a random number.

```
--longform
a = flr( rnd(10) ) --integer range 0-9
--shorthand
b = rnd(10)\1 --integer range 0-9
```

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12 May 2023