Also I am a huge fan of Matlab’s Documentation, at least up to the more recent versions that became less usable. They give a clear description of the function, list syntax options, give several examples and provide a see also section with similar or related functions (greatly helping discoverability). They usually include academic references at the end.
Whereas it works great for me so that when I can’t remember the precise syntax I can just glance at the top of the man page; if I want anspecific option I can search for it.
Info format files are intended to be more comprehensive and tutorial but they never really made the jump to Unix.
But actually, thanks for the key-combo tip on jumping straight to examples.