Задание
Какому римскому числу равно число \(\displaystyle 1590\)?
Решение
Определение
\(\displaystyle 1000={\rm M},\) \(\displaystyle 500={\rm D},\) \(\displaystyle 100={\rm C},\) \(\displaystyle 50={\rm L},\) \(\displaystyle 10={\rm X}.\)
| тысячи | сотни | десятки | единицы | |||||
| \(\displaystyle 1000\) | \(\displaystyle +\) | \(\displaystyle 500\) | \(\displaystyle +\) | \(\displaystyle 90\) | \(\displaystyle +\) | \(\displaystyle 0\) | \(\displaystyle =\) | \(\displaystyle 1590\) |
| \(\displaystyle {\rm M}\) | \(\displaystyle +\) | \(\displaystyle {\rm D}\) | \(\displaystyle +\) | \(\displaystyle {\rm XC}\) | \(\displaystyle +\) | \(\displaystyle {\rm }\) | \(\displaystyle =\) | \(\displaystyle {\rm MDXC}\) |
Ответ: \(\displaystyle {\rm MDXC}\).