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# npm

## @stdlib/math-base-special-ceil

0.0.7 • Public • Published

# Ceil

Round a double-precision floating-point number toward positive infinity.

## Installation

`npm install @stdlib/math-base-special-ceil`

## Usage

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

#### ceil( x )

Rounds a double-precision floating-point number toward positive infinity.

```var v = ceil( -4.2 );
// returns -4.0

v = ceil( 9.99999 );
// returns 10.0

v = ceil( 0.0 );
// returns 0.0

v = ceil( NaN );
// returns NaN```

## Examples

```var randu = require( '@stdlib/random-base-randu' );
var ceil = require( '@stdlib/math-base-special-ceil' );

var x;
var i;

for ( i = 0; i < 100; i++ ) {
x = (randu()*100.0) - 50.0;
console.log( 'ceil(%d) = %d', x, ceil( x ) );
}```

## Installation

`npm install @stdlib/math-base-special-ceil`

### Usage

`#include "stdlib/math/base/special/ceil.h"`

#### stdlib_base_ceil( x )

Rounds a double-precision floating-point number toward positive infinity.

```double y = stdlib_base_ceil( 3.14 );
// returns 4.0```

The function accepts the following arguments:

• x: `[in] double` input value.
`double stdlib_base_ceil( const double x );`

### Examples

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

int main() {
double x[] = { 3.14, -3.14, 0.0, 0.0/0.0 };

double y;
int i;
for ( i = 0; i < 4; i++ ) {
y = stdlib_base_ceil( x[ i ] );
printf( "ceil(%lf) = %lf\n", x[ i ], y );
}
}```

## Notice

This package is part of 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, see the main project repository.

## Keywords

### Install

`npm i @stdlib/math-base-special-ceil`

### Repository

github.com/stdlib-js/math-base-special-ceil

stdlib.io

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0.0.7

Apache-2.0

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