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# icu_decimal [](https://crates.io/crates/icu_decimal)
<!-- cargo-rdme start -->
Formatting basic decimal numbers.
This module is published as its own crate ([`icu_decimal`](https://docs.rs/icu_decimal/latest/icu_decimal/))
and as part of the [`icu`](https://docs.rs/icu/latest/icu/) crate. See the latter for more details on the ICU4X project.
Support for currencies, measurement units, and compact notation is planned. To track progress,
follow [icu4x#275](https://github.com/unicode-org/icu4x/issues/275).
## Examples
### Format a number with Bangla digits
```rust
use icu::decimal::input::Decimal;
use icu::decimal::DecimalFormatter;
use icu::locale::locale;
use writeable::assert_writeable_eq;
let formatter =
DecimalFormatter::try_new(locale!("bn").into(), Default::default())
.expect("locale should be present");
let decimal = Decimal::from(1000007);
assert_writeable_eq!(formatter.format(&decimal), "১০,০০,০০৭");
```
### Format a number with digits after the decimal separator
```rust
use icu::decimal::input::Decimal;
use icu::decimal::DecimalFormatter;
use icu::locale::Locale;
use writeable::assert_writeable_eq;
let formatter =
DecimalFormatter::try_new(Default::default(), Default::default())
.expect("locale should be present");
let decimal = {
let mut decimal = Decimal::from(200050);
decimal.multiply_pow10(-2);
decimal
};
assert_writeable_eq!(formatter.format(&decimal), "2,000.50");
```
### Format a number using an alternative numbering system
Numbering systems specified in the `-u-nu` subtag will be followed.
```rust
use icu::decimal::input::Decimal;
use icu::decimal::DecimalFormatter;
use icu::locale::locale;
use writeable::assert_writeable_eq;
let formatter = DecimalFormatter::try_new(
locale!("th-u-nu-thai").into(),
Default::default(),
)
.expect("locale should be present");
let decimal = Decimal::from(1000007);
assert_writeable_eq!(formatter.format(&decimal), "๑,๐๐๐,๐๐๗");
```
[`DecimalFormatter`]: DecimalFormatter
<!-- cargo-rdme end -->
## More Information
For more information on development, authorship, contributing etc. please visit [`ICU4X home page`](https://github.com/unicode-org/icu4x).
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