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[交流] 【求助】(在線等)maple中這個(gè)符號(hào)矩陣為什么生不成？已有3人參與

一個(gè)30X30的符號(hào)矩陣，請(qǐng)高手指點(diǎn)，謝謝

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1樓 2010-06-06 13:51:24

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zzuwangshilei:積極參與 2010-06-06 15:53:05
truewz(金幣+1): 2010-06-06 15:55:41

你的字符沒(méi)有定義變量吧

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2樓2010-06-06 15:12:43

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zzuwangshilei:積極參與 2010-06-06 15:53:23

引用回帖:

Originally posted by urion at 2010-06-06 15:12:43:
你的字符沒(méi)有定義變量吧

樓上的，估計(jì)不是這個(gè)原因，我設(shè)置了另一個(gè)類似的矩陣可以生成，并未預(yù)先定義字符變量
Q:=matrix([[cos(alpha), f*j*k*sin(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [cos(alpha), f*j*k*sin(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [cos(alpha), f*j*k*sin(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0],
         [-sin(alpha),cos(alpha),0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,ex_2,ex_1,0,0,0,0,0,0,0,0,0,0,0]]);

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3樓2010-06-06 15:28:02

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maplesim

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★ ★
robert2020(金幣+2):多謝提供解答，歡迎常來(lái)仿真模擬版交流！ 2010-06-07 22:20:17

首先不能用D作為變量名，你可以看到錯(cuò)誤信息，D是Maple內(nèi)部的微分算子。

所以可以用DD:= Matrix(........)

輸出：

雙擊上面的輸出，顯示矩陣內(nèi)容：

檢查數(shù)據(jù)類型：
type(DD, Matrix);
true

用鼠標(biāo)右鍵點(diǎn)擊上面的矩陣，可以從右鍵菜單中選擇要進(jìn)行的操作。

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4樓2010-06-07 13:25:04

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maplesim

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robert2020(金幣+1):多謝提供解答，歡迎常來(lái)仿真模擬版交流！ 2010-06-07 22:20:36

此外，matrix命令早已經(jīng)在最近幾個(gè)Maple版本中廢棄。
如果在幫助中輸入matrix，可以得到下面的信息。
Important: The matrix command has been deprecated. Use the superseding command Matrix instead.

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5樓2010-06-07 13:29:25

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maplesim

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truewz(金幣+9):非常感謝，我試一試 2010-06-07 14:18:20
robert2020:多謝提供解答，歡迎常來(lái)仿真模擬版交流！ 2010-06-07 22:20:51

矩陣的基本操作介紹：http://www.brsbox.com/filebox/do ... a7d09992ed7cc822707

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6樓2010-06-07 13:48:56

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[交流] 【求助】(在線等)maple中這個(gè)符號(hào)矩陣為什么生不成？已有3人參與