# Function spinoso_math::ldexp

source · [−]`pub fn ldexp(fraction: f64, exponent: i32) -> Result<f64, NotImplementedError>`

## Expand description

Returns the value of `fraction * (2**exponent)`

.

## Examples

```
use spinoso_math as math;
let (fraction, exponent) = math::frexp(1234.0)?;
let float = math::ldexp(fraction, exponent)?;
assert_eq!(float, 1234.0);
```

## Errors

Because `spinoso-math`

was built with the `full`

feature, this function will
always succeed and return the float determined by the given fraction and
exponent.