Change a variable's value wherever exists

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Vasilis Chasiotis
Vasilis Chasiotis 2020-4-22
评论： Deepak Gupta 2020-4-22
I have the following code:
syms a
x = a+1;
a = 2;
However, the value of x is equal to a+1.
Because I put a=2, how can I take the output of x to be equal to 2+1=3?
Thanks

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采纳的回答

Deepak Gupta
Deepak Gupta 2020-4-22
Hello Vasilis,
You need to use subs function to calculate value of symbolic function.
subs(x) as last line will give you value of x for a = 2.
Thanks,
Deepal\k

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