@ Override public void scal ( long N , IComplexNumber alpha , IComplexNDArray X ) { if ( X . data ( ) . dataType ( ) == DataBuffer . Type . DOUBLE ) zscal ( N , alpha . asDouble ( ) , X , BlasBufferUtil . getBlasStride ( X ) ) ; else cscal ( N , alpha . asFloat ( ) , X , BlasBufferUtil . getBlasStride ( X ) ) ; }
computes a vector by a scalar product .