标题: 〖求助〗关于matlab的问题啊 ？？？ [打印本页] 作者: 狂想001 时间: 2007-1-12 15:17
标题: 〖求助〗关于matlab的问题啊 ？？？
那位懂matlab的啊
帮个忙
说一下原因啊
syms x a b c
f=a*x^3+x^2-b*x-c
y1=diff(f)
y2=diff(f,a)
y3=diff(f,2)
y4=diff(f,a,2)
上面那段东西是我在书抄的
可是运行的时候却不行啊
Segmentation violation detected at Fri Jan 12 15:13:55 2007
------------------------------------------------------------------------
Configuration:
MATLAB Version: 6.5.0.180913a (R13)
Operating System: Microsoft Windows XP
Window System: Version 5.1 (Build 2600: Service Pack 2)
Processor ID: x86 Family 15 Model 4 Stepping 1, GenuineIntel
Virtual Machine: Java 1.3.1_01 with Sun Microsystems Inc. Java HotSpot(TM) Client VM
(mixed mode)
This error was detected while a MEX-file was running. If the MEX-file
is not an official MathWorks function, please examine its source code
for errors. Please consult the External Interfaces Guide for information
on debugging MEX-files.
If it is an official MathWorks function, please
follow these steps in reporting this problem to The MathWorks so
that we have the best chance of correcting it:
1. Send this crash report to segv@mathworks.com for automated analysis.
For your convenience, this information has been recorded in:
C:\DOCUME~1\juntiger\LOCALS~1\Temp\matlab_crash_dump.3280
2. Also, if the problem is reproducible, send the crash report to support@mathworks.com along with:
- A specific list of steps that will reproduce the problem
- Any M, MEX, MDL or other files required to reproduce the problem
- Any error messages displayed prior to this crash report
A technical support engineer will contact you with further information.
Thank you for your assistance. Please save your workspace and restart
MATLAB before continuing your work.
Error in ==> G:\建模\toolbox\symbolic\maplemex.dll
Error in ==> G:\建模\toolbox\symbolic\maple.m
On line 116 ==> [result,status] = maplemex(statement);
Error in ==> G:\建模\toolbox\symbolic\@sym\maple.m
On line 74 ==> [result,status] = maple(statement);
Error in ==> G:\建模\toolbox\symbolic\@sym\mpower.m
On line 17 ==> B = maple(A,'^',p);
Error in ==> G:\建模\work\Untitled4.m
On line 2 ==> f=a*x^3+x^2-b*x-c