主题: 9÷3(1+2)
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旧 Nov 23rd, 2011, 18:32     #16
busrel
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默认
来教教你们这些没有读过大学数学的人。joke...

呵呵，事实上出这个问题的人很无趣，因为在数学上，实数是个域，域操作符只有2个，一个是乘法一个是加法，所以除法根本不存在，所谓除法是乘法环上的补数而已，所以正确的写法比如 10÷ 5应该写成 10 * 5^-1
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