[Mikhail_Edoshin]

Some symbols may not be readily available, e. g. <> or {} or [] and you'll have to either switch to English or install and learn a modified layout. But this is mostly a Windows issue, I think; the Russian keyboard layout on Windows is barebones compared to that of Mac. As a result there are other custom-made layouts in circulation, e.g. a typographically enhanced one.

[grishka]

I've been using Mac for ages but I use the layout Apple calls "Russian — PC". These characters are still not really that available. There are some alt-shift-whatever contortions you can do to type them, but it's easier just to switch to English and back again. Apple's default Russian layout is even worse at the very least because the period is shift+7 instead of the key between Ю and shift.