The number pi (π) is approximately 3.14. And to say its rough value in Chinese is 三点一四(sān diǎn yī sì). Here is a challenging question to any advanced. ... <看更多>
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The number pi (π) is approximately 3.14. And to say its rough value in Chinese is 三点一四(sān diǎn yī sì). Here is a challenging question to any advanced. ... <看更多>