Round each component of a double-precision complex floating-point number toward positive infinity.
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> Round each component of a double-precision complex floating-point number toward positive infinity.
``bash`
npm install @stdlib/math-base-special-cceil
`javascript`
var cceil = require( '@stdlib/math-base-special-cceil' );
#### cceil( z )
Rounds each component of a double-precision complex floating-point number toward positive infinity.
`javascript
var Complex128 = require( '@stdlib/complex-float64-ctor' );
var real = require( '@stdlib/complex-float64-real' );
var imag = require( '@stdlib/complex-float64-imag' );
var v = cceil( new Complex128( -1.5, 2.5 ) );
// returns
var re = real( v );
// returns -1.0
var im = imag( v );
// returns 3.0
`
`javascript
var uniform = require( '@stdlib/random-base-uniform' ).factory;
var Complex128 = require( '@stdlib/complex-float64-ctor' );
var cceil = require( '@stdlib/math-base-special-cceil' );
var rand = uniform( -50.0, 50.0 );
var z;
var i;
for ( i = 0; i < 100; i++ ) {
z = new Complex128( rand(), rand() );
console.log( 'cceil(%s) = %s', z, cceil( z ) );
}
`
*
`c`
#include "stdlib/math/base/special/cceil.h"
#### stdlib_base_cceil( z )
Rounds each component of a double-precision complex floating-point number toward positive infinity.
`c
#include "stdlib/complex/float64/ctor.h"
#include "stdlib/complex/float64/real.h"
#include "stdlib/complex/float64/imag.h"
stdlib_complex128_t z = stdlib_complex128( 2.5, -1.5 );
stdlib_complex128_t out = stdlib_base_cceil( z );
double re = stdlib_complex128_real( out );
// returns 3.0
double im = stdlib_complex128_imag( out );
// returns -1.0
`
The function accepts the following arguments:
- z: [in] stdlib_complex128_t input value.
`c`
stdlib_complex128_t stdlib_base_cceil( const stdlib_complex128_t z );
`c
#include "stdlib/math/base/special/cceil.h"
#include "stdlib/complex/float64/ctor.h"
#include "stdlib/complex/float64/reim.h"
#include
int main( void ) {
const stdlib_complex128_t x[] = {
stdlib_complex128( 3.14, 1.5 ),
stdlib_complex128( -3.14, -1.5 ),
stdlib_complex128( 0.0, 0.0 ),
stdlib_complex128( 0.0/0.0, 0.0/0.0 )
};
stdlib_complex128_t v;
stdlib_complex128_t y;
double re1;
double im1;
double re2;
double im2;
int i;
for ( i = 0; i < 4; i++ ) {
v = x[ i ];
y = stdlib_base_cceil( v );
stdlib_complex128_reim( v, &re1, &im1 );
stdlib_complex128_reim( y, &re2, &im2 );
printf( "cceil(%lf + %lfi) = %lf + %lfi\n", re1, im1, re2, im2 );
}
}
`
*
- [@stdlib/math-base/special/cceiln][@stdlib/math/base/special/cceiln]: round each component of a double-precision complex floating-point number to the nearest multiple of 10^n toward positive infinity.
- [@stdlib/math-base/special/cfloor][@stdlib/math/base/special/cfloor]: round each component of a double-precision complex floating-point number toward negative infinity.
- [@stdlib/math-base/special/cround][@stdlib/math/base/special/cround]: round each component of a double-precision complex floating-point number to the nearest integer.
*
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].
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---
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Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
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[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
[deno-url]: https://github.com/stdlib-js/math-base-special-cceil/tree/deno
[deno-readme]: https://github.com/stdlib-js/math-base-special-cceil/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/math-base-special-cceil/tree/umd
[umd-readme]: https://github.com/stdlib-js/math-base-special-cceil/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/math-base-special-cceil/tree/esm
[esm-readme]: https://github.com/stdlib-js/math-base-special-cceil/blob/esm/README.md
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[@stdlib/math/base/special/cceiln]: https://www.npmjs.com/package/@stdlib/math-base-special-cceiln
[@stdlib/math/base/special/cfloor]: https://www.npmjs.com/package/@stdlib/math-base-special-cfloor
[@stdlib/math/base/special/cround]: https://www.npmjs.com/package/@stdlib/math-base-special-cround