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Change a variable's value wherever exists

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Vasilis Chasiotis 2020-4-22

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评论： Deepak Gupta 2020-4-22

采纳的回答： Deepak Gupta

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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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Deepak Gupta 2020-4-22

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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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Vasilis Chasiotis 2020-4-22

It works! Thanks!

Deepak Gupta 2020-4-22

Welcome Vasilis.

Please mark the answer as accepted if this solves your problem.

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