看你怎麽把x 變換到2x-2.
1) replace x with 2x: x -- > 2x.
replace x with x-1, get 2(x-1).
這是答案給的方法。
2) 另一種辦法:
replace x with x-2: get x-2.
In the above replace x with 2x: get 2x-2.
所以可以先平移後scaling, 但是平移的距離是2.
看你怎麽把x 變換到2x-2.
1) replace x with 2x: x -- > 2x.
replace x with x-1, get 2(x-1).
這是答案給的方法。
2) 另一種辦法:
replace x with x-2: get x-2.
In the above replace x with 2x: get 2x-2.
所以可以先平移後scaling, 但是平移的距離是2.
•
所以你的方法1其實就是先scale x 到2x,然後再平移1個unit,看來還是我的理解錯了,謝謝.
-Pilsung-
♂
(0 bytes)
()
06/14/2025 postreply
11:15:36
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2025 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy