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Can't use subs(sym_array,vector) because Matlab assumes I want to replace the first component of sym_array and not the whole array

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pefernan
pefernan 2017-4-20
关闭： MATLAB Answer Bot 2021-8-20
x = sym('x',[1 2 3])
subs(x,[1 2 3])
returns:
[1,2,3,x2,x2,x2,x3,x3,x3]
How do I fix this to return [1,2,3]?

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回答（1 个）

Chaitral Date
Chaitral Date 2017-4-25
See the below code,
syms x x1 x2 x3;
x = sym('x',[1 3]);
x=subs(x,[x1,x2,x3],[1, 2,3]);
This will give you,
x =
[ 1, 2, 3]

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