查看完整版本 : Algebra - Operations

iamnotaboy 2015-9-20 12:22 AM

Algebra - Operations

學group個陣有樣野叫Binary Operations,咁例子都係加減乘除。
咁N次方, take log等等既係咪Binary Operations?

14c14c 2015-9-20 09:53 PM

Surely no, log同n次邊度係GxG->G

iamnotaboy 2015-9-26 12:36 AM

Operations,一定要GxG->G既咩?記得以前阿sir話mod都係Operations,但唔係Binary。但mod都唔係GxG->G架啦~~~

14c14c 2015-9-26 01:48 AM

[quote]原帖由 [i]iamnotaboy[/i] 於 2015-9-26 12:36 AM 發表 [url=http://www.discuss.com.hk/redirect.php?goto=findpost&pid=426548449&ptid=25112318][img]http://www.discuss.com.hk/images/common/back.gif[/img][/url]
Operations,一定要GxG->G既咩?記得以前阿sir話mod都係Operations,但唔係Binary。但mod都唔係GxG->G架啦~~~ [/quote]
operation係唔一定呀

但係你本身問緊
"咁N次方, take log等等既係咪Binary Operations?"
咁binary 就係require GxG->G
^n, log就當然唔係

其實都係名黎架姐... G打去G既map差唔多都可以叫operation架啦
你要再多d條件就再多d名咁解

iamnotaboy 2015-9-27 01:21 AM

明白明白,THX
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查看完整版本: Algebra - Operations