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isNegativeZero
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Test if a double-precision floating-point numeric value is negative zero.
bash
npm install @stdlib/math-base-assert-is-negative-zero
javascript
var isNegativeZero = require( '@stdlib/math-base-assert-is-negative-zero' );
#### isNegativeZero( x )
Tests if a double-precision floating-point numeric value is negative zero.
javascript
var bool = isNegativeZero( -0.0 );
// returns true
bool = isNegativeZero( 0.0 );
// returns false
javascript
var isNegativeZero = require( '@stdlib/math-base-assert-is-negative-zero' );
var bool = isNegativeZero( -0.0 );
// returns true
bool = isNegativeZero( 0.0 );
// returns false
bool = isNegativeZero( 5.0 );
// returns false
bool = isNegativeZero( -1.0 );
// returns false
bool = isNegativeZero( NaN );
// returns false
@stdlib/math-base/assert/is-positive-zero][@stdlib/math/base/assert/is-positive-zero]: test if a double-precision floating-point numeric value is positive zero.
