作者iamOsaka (欧沙卡)
看板trans_math
标题[考古] 题目的条件不太懂
时间Wed Jun 22 23:13:10 2011
Assume that f(x) = x^(3/2) . Define
Γ ={(x,f(x)) 属於 R^2 | 0 <= x <= 4}
^^^^^
我想请问一下实数符号平方是指??@@
补上题目连结
http://www.cs.ccu.edu.tw/recruit/TranExam/98_calculus.pdf
里面第四第五都有出现"R^2"
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※ 编辑: iamOsaka 来自: 114.33.50.231 (06/22 23:15)
1F：推 NaiveCitrus:二维空间(? 120.127.32.115 06/22 23:38
※ 编辑: iamOsaka 来自: 114.33.50.231 (06/22 23:53)
2F：→ dali510313:应该士表二为空见的意思吧!表示XY都是R 111.184.178.34 06/23 00:14
3F：→ yhliu:R^2 = {(x,y): x in R, y in R}.125.233.154.243 06/23 00:45
4F：→ yhliu:R^3 = {(x,y.z): x,y,z in R}125.233.154.243 06/23 00:45
5F：→ yhliu:R^n = {(x_1,...,x_n): x_i in R,i=1,...,n}125.233.154.243 06/23 00:46
6F：→ iamOsaka:喔喔喔! 感谢楼上三位大大!<(_ _)> 114.33.50.231 06/23 09:57