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Re: [Greenfoot] 鞊⊥�
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pingfeng
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Mar 20, 2013, 10:32:16 PM
3/20/13
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to GreenfootTaiwan
再問一個笨問題
Help menu 下面第4個
java Library Documention
並沒有索引可以搜尋
我想要找三角函數sin con tan
或絕對值函數,要怎麼找?
Get Skype
and call 吳秉鋒 for free.
此信箱容量小
大型附件請轉寄
pingf...@gmail.com
依瑪貓
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Mar 20, 2013, 11:39:46 PM
3/20/13
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於 2013年03月21日 10:32, pingfeng 提到:
> 再問一個笨問題
>
> Help menu 下面第4個
> java Library Documention
> 並沒有索引可以搜尋
>
> 我想要找三角函數sin con tan
> 或絕對值函數,要怎麼找?
用 java.lang.Math :
Math.sin()
Math.cos()
Math.sin()
http://docs.oracle.com/javase/6/docs/api/java/lang/Math.html
java.lang.* 的類別(包括 java.lang.String )都會自動 import ,
可以直接用,不需要 import java.lang.Math 。
>
>
>
>
> Get Skype and call 吳秉鋒 for free.
>
> 此信箱容量小
> 大型附件請轉寄
pingf...@gmail.com
>
>
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