# fixed_decimal [](https://crates.io/crates/fixed_decimal)
`fixed_decimal` is a utility crate of the [`ICU4X`] project.
This crate provides [`Decimal`] and [`UnsignedDecimal`], essential APIs for representing numbers in a human-readable format.
These types are particularly useful for formatting and plural rule selection, and are optimized for operations on individual digits.
## Examples
```rust
use fixed_decimal::Decimal;
let mut dec = Decimal::from(250);
dec.multiply_pow10(-2);
assert_eq!("2.50", format!("{}", dec));
#[derive(Debug, PartialEq)]
struct MagnitudeAndDigit(i16, u8);
let digits: Vec<MagnitudeAndDigit> = dec
.magnitude_range()
.map(|m| MagnitudeAndDigit(m, dec.digit_at(m)))
.collect();
assert_eq!(
vec![
MagnitudeAndDigit(-2, 0),
MagnitudeAndDigit(-1, 5),
MagnitudeAndDigit(0, 2)
],
digits
);
```
[`ICU4X`]: ../icu/index.html
## More Information
For more information on development, authorship, contributing etc. please visit [`ICU4X home page`](https://github.com/unicode-org/icu4x).