How to know starting which MATLAB release a particular function was implemented?

Is it possible to know which MATLAB release has introduced a particular function?

For instance R2013b warns about "quad" suggesting to replace it with "integral" - how can I find when the "integral" was implemented? There's no such info in help/doc. Most of the time the file with the function contains copyright (e.g. "Copyright 2007-2011 The MathWorks, Inc.") - does the first year correspond to the year of release?

[Vladimir]

Apparently, copyright line does not correspond to the date of release. In this case of "integral" with "copyright 2007-2011" even the R2011b does not have it.

Answer 1

[Daniel Shub]

Unfortunately there is no easy way. You can go back through the release notes version by version until you find that it was introduced. See this answer of mine.

I would suggest filing it as an enhancement request with TMW.

[Vladimir]

Sad :( This topic you referenced - is it an official "enhancement request" from TMW?

[Daniel Shub]

No, you have to file one yourself. I think you can get there from http://www.mathworks.co.uk/support/service_requests/contact_support.do

Answer 2

[Mike Hosea]

INTEGRAL was added in R2012a along with INTEGRAL2 and INTEGRAL3.