2020年11月9日
Islamic empire
摘要： In Egypt, Abu Kamil extended algebra to the set of irrational numbers无理数, accepting square roots and fourth roots as solutions and coefficients to qua 阅读全文
posted @ 2020-11-09 21:52 valar-morghulis 阅读(74) 评论(0) 推荐(0) 编辑