How to call constant in MATLAB?

Suppose I want to define a = X; b = Y, and then want the addition of a+b. How can I do that? I mean, how can I call a letter as a constant?

[jgg]

Please check over your question; there is no a or b in your problem statement. Additionally, are these numerical objects or symbolic objects? What is the context for your problem?

[Mahbubur Rahman]

Fixed it.

Answer 1

[Star Strider]

‘How can I do that? I mean, how can I call a letter as a constant?’

If you want to do symbolic operations, you have to use the Symbolic Math Toolbox.