matlab symbolic set value

To set a value in MATLAB using symbolic variables, you can use the subs function. The subs function substitutes a value for a symbolic variable in an expression. Here's an example:

syms x;
expr = x^2 + 3*x + 2;
value = 5;
result = subs(expr, x, value);

In this example, we define a symbolic variable x using the syms function. Then, we define an expression expr that uses the symbolic variable. We want to substitute the value 5 for x in the expression, so we use the subs function. The result will be stored in the variable result.

Please note that the subs function only works with symbolic variables. If you want to substitute values in a regular MATLAB variable, you can simply assign the value directly. For example:

x = 5;

I hope this helps! Let me know if you have any further questions.