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{{alias}}( [out,] x )
Returns a normal number and exponent satisfying `x = y * 2^exp` as an array.
The first element of the returned array corresponds to `y` and the second to
`exp`.
Parameters
----------
out: Array|TypedArray|Object (optional)
Output array.
x: number
Double-precision floating-point number.
Returns
-------
out: Array|TypedArray|Object
An array containing `y` and `exp`.
Examples
--------
> var out = {{alias}}( 3.14e-319 )
[ 1.4141234400356668e-303, -52 ]
> var y = out[ 0 ];
> var exponent = out[ 1 ];
> var bool = ( y*{{alias:@stdlib/math/base/special/pow}}(2.0, exponent) === 3.14e-319 )
true
// Special cases:
> out = {{alias}}( 0.0 )
[ 0.0, 0 ];
> out = {{alias}}( {{alias:@stdlib/constants/float64/pinf}} )
[ Infinity, 0 ]
> out = {{alias}}( {{alias:@stdlib/constants/float64/ninf}} )
[ -Infinity, 0 ]
> out = {{alias}}( NaN )
[ NaN, 0 ]
// Provide an output array:
> out = new {{alias:@stdlib/array/float64}}( 2 );
> var v = {{alias}}( out, 3.14e-319 )
<Float64Array>[ 1.4141234400356668e-303, -52 ]
> bool = ( v === out )
true
See Also
--------
|
