楼主: mama
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记得泛函和实变函数里面经常把实数表示成IR,是什么意思?? 实数不就是R吗 |
发表于 2011-12-19 23:30:32
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发表于 2011-12-19 23:38:39
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发表于 2011-12-19 23:48:40
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发表于 2011-12-19 23:50:40
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