How does Casio calculator fx-99 1ms perform decimal conversion?

In radix mode, Casio calculator fx-99 1CN X provides two methods to quickly convert to decimal.

The first method is to press the corresponding key for conversion, and press (DEC) to switch to decimal mode; Press HEX to switch to hexadecimal mode; Press BIN key to switch to binary mode; Press In(OCT) to switch to octal.

The second method is to enter a specific command after the numerical value to specify the decimal number of the numerical value, where D stands for decimal number, H stands for hexadecimal number, B stands for binary number and O stands for octal number.

Press the MODE key to select BASE-N and enter the corresponding number. Mine is 4 (4: radix -N will be displayed on the calculator).

DEC 0 now stands for decimal on the calculator.

At this point, you have entered the interface of decimal, hexadecimal, binary and octal conversion.

Next, just enter the known number corresponding to "a certain number", then press =, and then press the required "number key".