用戶討論:Zhangyunfan

邏輯符號

• Zhangyunfan, 行文(即公式外) 太多符號令您的文難讀. 例如,可簡單改 " $\exists A$ " 為"存在 A", 等. 謝!---Hillgentleman 12:40 2006年10月25日 (UTC)

引文: "若$\exists A\in R$使得數列{$\left.x_{n}\right.$}恆滿足$x_{n}\geq A$，則稱數列{$\left.x_{n}\right.$}有下界；若$\exists B\in R$使得數列{$\left.x_{n}\right.$}恆滿足$x_{n}\leq B$，則稱數列{$\left.x_{n}\right.$}有上界；若$\exists A\in R$且$\exists B\in R$使得數列{$\left.x_{n}\right.$}恆滿足$B\geq x_{n}\geq A$，則稱數列{$\left.x_{n}\right.$}有界。"

• "A person editing a mathematics article should not fall into temptation that "this formula says it all". A non-mathematical reader will skip the formulas in most cases, and often a mathematician reading outside his research area will do the same. Careful thought should be given to each formula included, and words should be used instead if possible. In particular, the English words "for all", "exists", and "in" should be preferred to the ∀, ∃, and ∈ symbols." ------- en:w:Wikipedia:Manual of Style (mathematics)#Suggested structure of a mathematics article, section Article body.--------Hillgentleman 12:47 2006年10月25日 (UTC)

我的瀏覽器字體大小

我的瀏覽器字體大小用 Ctrl+ / Ctrl- 隨意控制.謝!--Hillgentleman 18:47 2006年10月25日 (UTC)

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