数すう字じ表ひょう記き法ほう

• 記き数すう法ほう

  記数法 is a broader term for numeral systems, while 数字表記法 specifically emphasizes the notation or representation of numbers.

• 表ひょう記き法ほう

  表記法 means 'notation' or 'representation system' in general; 数字表記法 narrows it to numerical notation.

Compound of 数字 (sūji, 'numeral') + 表記 (hyōki, 'notation') + 法 (hō, 'method'). A straightforward modern technical term.