Venturing away from the self, also plays a starring role in mathematics. The lowercase italic i represents the imaginary unit — the square root of -1. For centuries, negative square roots were considered nonsensical. But in the 16th and 17th centuries, mathematicians like Cardano and Bombelli began exploring them. The symbol "i" was popularized by Leonhard Euler in the 18th century, and later by Carl Friedrich Gauss. The choice of "i" was natural: it stands for imaginary .
The biological organ of sight, phonetically identical to the pronoun. Venturing away from the self, also plays a
ສະຫງວນລິຂະສິດ 2016 ໂດຍກະຊວງຍຸຕິທໍາ
