[其他] 請益一些書上的敘述
小弟在 Rudin 的書上看到這句
For a complex function f, the statement "f≧0" means that all values f(x)
of f are nonnegative real numbers.
複數函數值大於等於零?
複數可以比大小?...(*)
可以幫我解釋一下意思嗎?
或是幫我指出(*)的困惑
感謝
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