Problems with nested indexing
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Hello,
I'm using a MATLAB algorithm to project and size the components of a vehicular suspension system.
In the following lines, an error is happening:
syms a2 b2
eq3=a2*Xmse+b2-Ymse;
eq4=a2*Xes+b2-Yes;
S2=solve(eq3,eq4);
a2=S2.a2(1);
b2=S2.b2(1);
OBS: the variables Xmse, Ymse, Xes and Yes are all real numbers.
This is the error that is happening every time I run the algorithm:
" Error using sym/subsref (line 747)
SYM objects do not allow nested indexing. Assign intermediate values to variables instead.
Error in projeto_de_suspensao (line 136)
a2=S2.a2(1); "
I don't know how to fix it. Can you help me?
Thanks for the support
2 个评论
Walter Roberson
2019-3-23
Which MATLAB release are you using? I do not get that error.
The message you are getting is what you would get if the result of the solve() were a single symbolic expression rather than a structure of results. You would get a single result if eq4 somehow ended up being a scalar symbolic variable name
ROBSON SCHNEIDER
2019-3-27
回答（1 个）
madhan ravi
2019-3-14
编辑：madhan ravi
2019-3-23
0 个投票
Remove (1) from the last two lines.
1 个评论
madhan ravi
2019-3-14
编辑：madhan ravi
2019-3-14
Alternative:
[a2,b2]=solve(eq3,eq4,[a2,b2])
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2019-3-14
2019-3-27
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