
11202.WedCh10_240327
Authored by Ys Huang
Computers
12th Grade
Used 1+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
a定義為(1:4),使用cumprod(a)後應該得到下列何者?
1 3 6 10
3 6 10 15
1 2 6 24
2 6 11 17
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
log(20,base=sqrt(20)),我們應該得到什麼結果?
2
2.602
1
1.301
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
對於c(1,2,3) ^ c(4,3,2)的結果,以下何者為非?
1 8 9
2 7 8
3 5 6
5 5 5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
對ma4定義為as.data.frame(ma) + as.data.frame(ma2),以下何者會顯示為TRUE?
is.data.frame(ma4)
is.array(ma4)
is.matrix(ma4)
is.vector(ma4)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在流程控制方面,存在那些主要語句?
迴圈語句
條件語句
兩種皆非
兩種皆是
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
定義ma為matrix(1:12,3)和定義ma2為matrix(2:13,3),接著將兩者相加ma+ma2得出ma3,輸入ma3[2,]應該得到什麼?
3 9 15 21
5 11 17 23
7 13 19 25
9 15 21 27
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪個函數會得到4這個數字?
floor(3.3)
ceiling(3.3)
trunc(3.3)
floor(3.6)
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