public SDVariable diag(String name, SDVariable x) {
        SDVariable ret = f().diag(x);
        return updateVariableNameAndReference(ret, name);
    }
public SDVariable diag ( String name , SDVariable x ) { SDVariable ret = f ( ) . diag ( x ) ; return updateVariableNameAndReference ( ret , name ) ; }
Returns an output variable with diagonal values equal to the specified values; off-diagonal values will be set to 0<br>
For example, if input = [1,2,3], then output is given by:<br>
[ 1, 0, 0]<br>
[ 0, 2, 0]<br>
[ 0, 0, 3]<br>
<br>
Higher input ranks are also supported: if input has shape [a,...,R-1] then output[i,...,k,i,...,k] = input[i,...,k].
i.e., for input rank R, output has rank 2R

@param name Name of the output variable
@param x    Input variable
@return Output variable