Many people know that, for example, on Windows you can type many characters like
Alt+xxxx
, where
xxxx
is the numeric character code. However, if you use a Mac, all this is done much simpler: for example, the K key combination allows you to type the “apple” symbol - , and there are a lot of such characters. There is only one question: where to find all these “magic combinations and how to memorize them?” In fact, everything is very simple.
Nothing to remember and do not need - just use the small applet Keyboard Viewer, built into the system of the Leopard family:

')
The applet itself looks like this:

In its original form, the benefits of it, perhaps, are few - what your keyboard looks like; by this time, you probably have already figured it out. However, it is worth “pressing” the modifier keys, and the picture will change dramatically:



With such a hint, a set of simple expressions (for which you don’t want to bother with LaTeX, but you still need to write) like
∂f / ∂x ≈ df / dx + ∆ (forgive me for such folk art - this is just an example for the sake of!) should not.
PS I ’m wildly sorry, but
LittleSnapper ’s default image hosting didn’t withstand the habraeffect and went down :) Now I’ll think where I can reload the images.