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cceil
Round a double-precision complex floating-point number toward positive infinity.
Installation
npm install @stdlib/math-base-special-cceilUsage
var cceil = require( '@stdlib/math-base-special-cceil' );cceil( z )
Rounds a double-precision complex floating-point number toward positive infinity.
var Complex128 = require( '@stdlib/complex-float64' );
var real = require( '@stdlib/complex-real' );
var imag = require( '@stdlib/complex-imag' );
var v = cceil( new Complex128( -1.5, 2.5 ) );
// returns <Complex128>
var re = real( v );
// returns -1.0
var im = imag( v );
// returns 3.0Examples
var uniform = require( '@stdlib/random-base-uniform' ).factory;
var Complex128 = require( '@stdlib/complex-float64' );
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 APIs
Usage
#include "stdlib/math/base/special/cceil.h"stdlib_base_cceil( z )
Rounds a double-precision complex floating-point number toward positive infinity.
#include "stdlib/complex/float64.h"
#include "stdlib/complex/real.h"
#include "stdlib/complex/imag.h"
stdlib_complex128_t z = stdlib_complex128( 2.5, -1.5 );
stdlib_complex128_t out = stdlib_base_cceil( z );
double re = stdlib_real( out );
// returns 3.0
double im = stdlib_imag( out );
// returns -1.0The function accepts the following arguments:
-
z:
[in] stdlib_complex128_tinput value.
stdlib_complex128_t stdlib_base_cceil( const stdlib_complex128_t z );Examples
#include "stdlib/math/base/special/cceil.h"
#include "stdlib/complex/float64.h"
#include "stdlib/complex/reim.h"
#include <stdio.h>
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_reim( v, &re1, &im1 );
stdlib_reim( y, &re2, &im2 );
printf( "cceil(%lf + %lfi) = %lf + %lfi\n", re1, im1, re2, im2 );
}
}See Also
-
@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: round a double-precision complex floating-point number toward negative infinity. -
@stdlib/math-base/special/cround: round each component of a double-precision complex floating-point number to the nearest integer.
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.
Community
License
See LICENSE.
Copyright
Copyright © 2016-2024. The Stdlib Authors.