Indian mathematician and astronomer. He developed algebra using symbols, and recognized that there are two square roots of positive numbers, positive and negative, and that the square root of negative numbers does not exist. He also gave a proof of the Pythagorean theorem. Source : Heibonsha Encyclopedia About MyPedia Information |
インドの数学者,天文学者。記号を用いて代数学を発展させ,正数の平方根が正負二つあること,負数の平方根が存在しないことを認めた。またピタゴラスの定理の一証明を与えた。
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