code: public BigComplex add(BigComplex value) {
  		return valueOf(
  				re.add(value.re),
  				im.add(value.im));
  	}
docs: Calculates the addition of the given complex value to this complex number.
  
  <p>This methods <strong>does not</strong> modify this instance.</p>
  
  @param value the {@link BigComplex} value to add
  @return the calculated {@link BigComplex} result