How to check availabilty of command from Matlab version?

It's been quite a fact that some of the commands cannot be accessed, due to users Matlab version or it may be due to necessary toolboxes associated with that? How exactly we can find the use of particular command for particular version or toolbox?. For e.g If an user wants to use syms command, from which Matlab version the command is used?

Rgds

Muruganandham

Answer 1

[Walter Roberson]

There is no mechanism for this, other than carefully going through the documentation for each release.

The particular example you give, syms(), is part of the Symbolic Toolbox, which is an optional (extra-cost) toolbox in any Academic or Commercial license, but which is included in each Student Version (but not installed by default.) syms() predates the switch to MuPAD in R2009b (I think it was), back to when Maple was the symbolic engine. syms() dates back to at least R13SP2.

[Muruganandham Subramanian]

Is there any possibility for commands used in lower version, not in higher version?

[Walter Roberson]

I think you are asking if there is any way to use commands that were removed. The answer to that is NO, not without writing the functionality using the newer commands. Usually that is possible, but every once in a while Mathworks needs to remove something for legal reasons and then there might not be a newer equivalent.

[Muruganandham Subramanian]

Ho can we identify the removed commands?

[Walter Roberson]

There is no good source of information about removed commands. The Release Notes are often the major source of information.