この関数は Google スプレッドシートでも Excel と同じように機能します。構文も引数も同じです。
ROMAN(number, [form])The ROMAN function transforms a standard number (1 to 3999) into its Roman numeral equivalent. The optional form argument allows you to specify the degree of simplification, ranging from classic to more concise styles.
=ROMAN(499)結果: CDXCIX
Converts the number 499 into its standard Roman numeral representation.
=ROMAN(2023, 0)結果: MMXXIII
Converts 2023 to Roman numerals using the classic format.
The ROMAN function supports numbers up to 3999.
Yes, you can use the ARABIC function to perform the reverse conversion.