Mertensia
- Mertensia is a genus of flowering plants in the family Boraginaceae. They are perennial herbaceous plants with blue or sometimes white flowers that open from pink-tinged buds.
Mertens
- Mertens (Dutch pronunciation: [ˈmɛrtə(n)s]) is a Dutch-language patronymic surname, meaning "son of Merten" (Martin).
Mertens function
- In number theory, the Mertens function is defined for all positive integers n as
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