Test whether two double-precision complex floating-point numbers are the same value.
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> Test whether two double-precision complex floating-point numbers are the same value.
``bash`
npm install @stdlib/complex-float64-base-assert-is-same-value
`javascript`
var isSameValue = require( '@stdlib/complex-float64-base-assert-is-same-value' );
#### isSameValue( z1, z2 )
Tests whether two double-precision complex floating-point numbers are the same value.
`javascript
var Complex128 = require( '@stdlib/complex-float64-ctor' );
var z1 = new Complex128( 5.0, 3.0 );
var z2 = new Complex128( 5.0, 3.0 );
var out = isSameValue( z1, z2 );
// returns true
`
In contrast to the strict equality operator ===, the function distinguishes between +0 and -0 and treats NaNs as the same value.
`javascript
var Complex128 = require( '@stdlib/complex-float64-ctor' );
var z1 = new Complex128( NaN, NaN );
var z2 = new Complex128( NaN, NaN );
var out = isSameValue( z1, z2 );
// returns true
z1 = new Complex128( -0.0, 0.0 );
z2 = new Complex128( 0.0, -0.0 );
out = isSameValue( z1, z2 );
// returns false
`
- The function implements the [SameValue Algorithm][ecma-262-same-value-algorithm] as specified in ECMAScript 5.
`javascript
var Complex128 = require( '@stdlib/complex-float64-ctor' );
var isSameValue = require( '@stdlib/complex-float64-base-assert-is-same-value' );
var z1 = new Complex128( 5.0, 3.0 );
var z2 = new Complex128( 5.0, 3.0 );
var out = isSameValue( z1, z2 );
// returns true
z1 = new Complex128( -5.0, -3.0 );
z2 = new Complex128( 5.0, 3.0 );
out = isSameValue( z1, z2 );
// returns false
z1 = new Complex128( NaN, 3.0 );
z2 = new Complex128( NaN, 3.0 );
out = isSameValue( z1, z2 );
// returns true
`
*
`c`
#include "stdlib/complex/float64/base/assert/is_same_value.h"
#### stdlib_base_complex128_is_same_value( z1, z2 )
Tests whether two double-precision complex floating-point numbers are the same value.
`c
#include "stdlib/complex/float64/ctor.h"
#include
stdlib_complex128_t z1 = stdlib_complex128( 5.0, 2.0 );
stdlib_complex128_t z2 = stdlib_complex128( 5.0, 2.0 );
bool v = stdlib_base_complex128_is_same_value( z1, z2 );
`
The function accepts the following arguments:
- z1: [in] stdlib_complex128_t first double-precision complex floating-point number.[in] stdlib_complex128_t
- z2: second double-precision complex floating-point number.
`c`
bool stdlib_base_complex128_is_same_value( const stdlib_complex128_t z1, const stdlib_complex128_t z2 );
`c
#include "stdlib/complex/float64/base/assert/is_same_value.h"
#include "stdlib/complex/float64/ctor.h"
#include
#include
int main( void ) {
const stdlib_complex128_t z[] = {
stdlib_complex128( 5.0, 2.0 ),
stdlib_complex128( -2.0, 1.0 ),
stdlib_complex128( 0.0, -0.0 ),
stdlib_complex128( 0.0/0.0, 0.0/0.0 )
};
bool v;
int i;
for ( i = 0; i < 4; i++ ) {
v = stdlib_base_complex128_is_same_value( z[ i ], z[ i ] );
printf( "Same value? %s\n", ( v ) ? "True" : "False" );
}
}
`
*
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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