[RFC]: add JS implementation for sign #2856
Description
Description
This RFC proposes adding JS implementation equivalent to sign present in Fortran. This is used often in LAPACK/BLAS packages.
/**
* Returns `x` multipled by `signum( y )`.
*
* @param {number} x - scalar element
* @param {number} y - scalar element
* @returns {number} computed value
*
* @example
* var out = sign( 1.0, -0.9 );
* // out => -1.0
*/
function sign( x, y ) {
return x * signum( y );
}Where we already have implementation for signum
alias: @stdlib/math/base/special/sign
reference: @stdlib/math/base/special/max
Related Issues
Related issues #2464.
Questions
No.
Other
cc @kgryte
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RFC:.