# Python Lambda Functions

A lambda function is a small anonymous function. A lambda function can take any number of arguments, but can only have one expression.

## Syntax

```python
lambda arguments : expression
```

The expression is executed and the result is returned.

## Examples

### Basic Usage

Add 10 to argument `a`, and return the result:

```python
x = lambda a : a + 10
print(x(5)) # Output: 15
```

### Multiple Arguments

Multiply argument `a` with argument `b` and return the result:

```python
x = lambda a, b : a * b
print(x(5, 6)) # Output: 30
```

## Why Use Lambda Functions?

The power of lambda is better shown when you use them as an anonymous function inside another function.

Say you have a function definition that takes one argument, and that argument will be multiplied with an unknown number:

```python
def myfunc(n):
  return lambda a : a * n

mydoubler = myfunc(2)

print(mydoubler(11)) # Output: 22
```

[[programming/python/python]]