docs: public static double elementMinAbs( ZMatrixRMaj a ) {
          final int size = a.getDataLength();
  
          double min = Double.MAX_VALUE;
          for( int i = 0; i < size; i += 2 ) {
              double real = a.data[i];
              double imag = a.data[i+1];
  
              double val = real*real + imag*imag;
  
              if( val < min ) {
                  min = val;
              }
          }
  
          return Math.sqrt(min);
      }