具体可学习下符号计算.
举个例子
pi在系统内被认为是一个充分精确地数 比如 3.1415926535898
sym(pi)是符号,相当于π.
运算中sin(3.1415926535898)是数值运算sin(π)是符号运算
MATLAB Central> MATLAB Newsreader > sin(pi) does not equal zero |
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Thread Subject:
sin(pi) does not equal zero
Subject: sin(pi) does not equal zero From: Steve Waikam SIU Date: 11 Dec, 1998 20:12:23 Message: 1 of 6 |
Hi, |
Subject: sin(pi) does not equal zero From: 112358etc@my-dejanews.com Date: 11 Dec, 1998 18:27:23 Message: 2 of 6 |
In article <36710C27.8DA4BC75@ee.cityu.edu.hk>, |
In article <36710C27.8DA4BC75@ee.cityu.edu.hk> Steve Waikam SIU, |
Subject: sin(pi) does not equal zero From: rayn@mathworks.com (raymond s. norris) Date: 11 Dec, 1998 14:06:29 Message: 4 of 6 |
Hi Steve- |
Subject: sin(pi) does not equal zero From: moler@mathworks.com (Cleve Moler) Date: 11 Dec, 1998 14:20:35 Message: 5 of 6 |
Steve Waikam SIU <wksiu@ee.cityu.edu.hk> wrote: |
Subject: sin(pi) does not equal zero From: spamthis@my-dejanews.com Date: 11 Dec, 1998 19:28:17 Message: 6 of 6 |
In article <36710C27.8DA4BC75@ee.cityu.edu.hk>, |
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