# `/=` Divide By Operator

> Divides a variable by the right hand value (expression)

## Description

The Divide By operator takes the value of the variable specified on the left
side of the operator and divides it by the value on the right hand side. Then
it assigns the result back to the variable specified on the left side.

It is ostensibly just shorthand for `$i = $i / value`.

This operator is only available in expressions.



## Examples

```
» $i = 3
» $i /= 2
» $i
1.5
```

## Detail

### Strict Types

Unlike with the standard arithmetic operators (`+`, `-`, `*`, `/`), silent data
casting isn't supported with arithmetic assignments like `+=`, `-=`, `*=` and
`/=`. Not even when `strict-types` is disabled ([read more](/docs/user-guide/strict-types.md))

You can work around this by using the slightly longer syntax: **variable =
value op value**, for example:

```
» $i = "3"
» $i = $i + "2"
» $i
5
```

## See Also

* [`*=` Multiply By Operator](../parser/multiply-by.md):
  Multiplies a variable by the right hand value (expression)
* [`+=` Add With Operator](../parser/add-with.md):
  Adds the right hand value to a variable (expression)
* [`-=` Subtract By Operator](../parser/subtract-by.md):
  Subtracts a variable by the right hand value (expression)
* [`/` Division Operator](../parser/division.md):
  Divides one numeric value from another (expression)
* [`cast`](../commands/cast.md):
  Alters the data type of the previous function without altering it's output
* [`config`](../commands/config.md):
  Query or define Murex runtime settings
* [`expr`](../commands/expr.md):
  Expressions: mathematical, string comparisons, logical operators
* [`float` (floating point number)](../types/float.md):
  Floating point number (primitive)
* [`int`](../types/int.md):
  Whole number (primitive)
* [`num` (number)](../types/num.md):
  Floating point number (primitive)

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This document was generated from [gen/expr/divide-by-op_doc.yaml](https://github.com/lmorg/murex/blob/master/gen/expr/divide-by-op_doc.yaml).