[問題] 如何取得matrix的dimensions?已回收
如果從excel檔案裡面讀取數據
存到矩陣A如下
2.337 5.55
3.44 4.643
2.27 7.76
3.44 5.55
A為mxn的矩陣 m,n可為任意數 視excel檔案的內容而定
欲使得變數x,y為矩陣A的dimension
x=m
y=n
要用甚麼指令?
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.112.7.59
→
07/05 17:52, , 1F
07/05 17:52, 1F
→
07/05 17:59, , 2F
07/05 17:59, 2F
推
07/05 18:32, , 3F
07/05 18:32, 3F
→
07/05 23:18, , 4F
07/05 23:18, 4F
→
07/05 23:19, , 5F
07/05 23:19, 5F
→
07/06 00:47, , 6F
07/06 00:47, 6F
→
07/06 12:49, , 7F
07/06 12:49, 7F
→
07/06 16:02, , 8F
07/06 16:02, 8F
推
10/27 15:17, , 9F
10/27 15:17, 9F