code: public void setMathContext(java.math.MathContext newValue) {
          mathContext = new MathContext(newValue.getPrecision(), MathContext.SCIENTIFIC, false,
                                        (newValue.getRoundingMode()).ordinal());
      }
docs: <strong>[icu]</strong> Sets the MathContext used by this format.
  
  @param newValue desired MathContext
  @see #getMathContext