If you have lost the printed copy, Casio Hong Kong also offers a request service via their distributor, "Universal Impex Ltd."
Base conversion/binary/hexadecimal calculations. Inputting Expressions (Multi-replay) casio fx-50fh ii user manual
In the weeks leading up to your HKDSE Mathematics Paper 1 (compulsory part) and Paper 2 (multiple-choice), spend one evening reading the manual cover to cover. Pay special attention to: If you have lost the printed copy, Casio