You can't really study matlab, matlab is a tool that will allow you to perform... well, almost everything. It's just like trying to study "hammer". You can swing a hammer more or less skillfully, but if you don't know what a nail is, it will do you little good to be a Doctor es hammering.
In other words, Matlab is easy enough to use, but if you don't understand the maths behind it, it won't be that useful.