3 ms·
x * x has two 2nd roots, namely, x and -x, and the result of this "function" (in quotes because it doesn't obey the definition thereof) requires you to choose a
by uoaei 7y ago
x * x has two 2nd roots, namely, x and -x, and the result of this "function" (in quotes because it doesn't obey the definition thereof) requires you to choose arbitrarily between them, thus creating a dichotomy.