npm package: @stdlib/math-base-special-wrap
Description: Wrap a value to the half-open interval [min,max).
Author: The Stdlib Authors
Latest version: 0.2.4

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# wrap

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> Wrap a value to the half-open interval `[min,max)`.

<!-- Section to include introductory text. Make sure to keep an empty line after the intro `section` element and another before the `/section` close. -->

<section class="intro">

</section>

<!-- /.intro -->

<!-- Package usage documentation. -->

<section class="installation">

## Installation

```bash
npm install @stdlib/math-base-special-wrap
```

</section>

<section class="usage">

## Usage

```javascript
var wrap = require( '@stdlib/math-base-special-wrap' );
```

#### wrap( v, min, max )

Wraps a value to the half-open interval `[min,max)`.

```javascript
var v = wrap( 3.14, 0.0, 5.0 );
// returns 3.14

v = wrap( -3.14, 0.0, 5.0 );
// returns ~1.86

v = wrap( 10.0, 0.0, 5.0 );
// returns 0.0

v = wrap( -0.0, 0.0, 5.0 );
// returns 0.0

v = wrap( 0.0, -3.14, -0.0 );
// returns -3.14
```

If provided `NaN` for any argument, the function returns `NaN`.

```javascript
var v = wrap( NaN, 0.0, 5.0 );
// returns NaN

v = wrap( 0.0, NaN, 5.0 );
// returns NaN

v = wrap( 3.14, 0.0, NaN );
// returns NaN
```

If provided `min == max`, the function returns `NaN`.

```javascript
var v = wrap( 3.14, 3.0, 3.0 );
// returns NaN
```

</section>

<!-- /.usage -->

<!-- Package usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="notes">

## Notes

-   The function does **not** distinguish between positive and negative zero. Where appropriate, the function returns positive zero.

</section>

<!-- /.notes -->

<!-- Package usage examples. -->

<section class="examples">

## Examples

<!-- eslint no-undef: "error" -->

```javascript
var discreteUniform = require( '@stdlib/random-array-discrete-uniform' );
var logEachMap = require( '@stdlib/console-log-each-map' );
var wrap = require( '@stdlib/math-base-special-wrap' );

var opts = {
    'dtype': 'float64'
};
var min = discreteUniform( 100, 0, 10, opts );
var max = discreteUniform( 100, 5, 15, opts );
var v = discreteUniform( 100, -20, 20, opts );

logEachMap( 'wrap(%d,%d,%d) => %0.4f', v, min, max, wrap );
```

</section>

<!-- /.examples -->

<!-- C interface documentation. -->

* * *

<section class="c">

## C APIs

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<section class="intro">

</section>

<!-- /.intro -->

<!-- C usage documentation. -->

<section class="usage">

### Usage

```c
#include "stdlib/math/base/special/wrap.h"
```

#### stdlib_base_wrap( v, min, max )

Wraps a value to the half-open interval `[min,max)`.

```c
double v = stdlib_base_wrap( 3.14, 0.0, 5.0 );
// returns 3.14

v = stdlib_base_wrap( -3.14, 0.0, 5.0 );
// returns ~1.86
```

The function accepts the following arguments:

-   **v**: `[in] double` input value to wrap.
-   **min**: `[in] double` minimum value.
-   **max**: `[in] double` maximum value.

```c
double stdlib_base_wrap( const double v, const double min, const double max )
```

</section>

<!-- /.usage -->

<!-- C API usage notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="notes">

</section>

<!-- /.notes -->

<!-- C API usage examples. -->

<section class="examples">

### Examples

```c
#include "stdlib/math/base/special/wrap.h"
#include <stdio.h>

int main( void ) {
    const double min[] = { 0.0, 0.0, 0.0, 0.0, -3.14 };
    const double max[] = { 5.0, 5.0, 5.0, 5.0, -0.0 };
    const double v[] = { 3.14, -3.14, 10.0, -0.0, 0.0 };

    double out;
    int i;
    for ( i = 0; i < 5; i++ ) {
        out = stdlib_base_wrap( v[i], min[i], max[i] );
        printf( "wrap(%lf,%lf,%lf) => %lf\n", v[i], min[i], max[i], out );
    }
}
```

</section>

<!-- /.examples -->

</section>

<!-- /.c -->

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<section class="references">

</section>

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<section class="related">

* * *

## See Also

-   <span class="package-name">[`@stdlib/math-base/special/clamp`][@stdlib/math/base/special/clamp]</span><span class="delimiter">: </span><span class="description">restrict a double-precision floating-point number to a specified range.</span>

</section>

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<section class="main-repo" >

* * *

## Notice

This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

</section>

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[deno-url]: https://github.com/stdlib-js/math-base-special-wrap/tree/deno
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[@stdlib/math/base/special/clamp]: https://www.npmjs.com/package/@stdlib/math-base-special-clamp

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