Mac OS X 10.6: Typing special characters and symbols
Use the Character Viewer to enter special characters and symbols, such as mathematical symbols, letters with accent marks, or arrows and other “dingbats,” into your documents.
You can also use the Character Viewer to enter Japanese, Traditional Chinese, Simplified Chinese, and Korean characters, as well as characters from other languages.
To show the Character Viewer:
Choose Apple menu > System Preferences, click Language & Text, and then click Input Sources.
Select the Keyboard & Character Viewer checkbox.
To use the Character Viewer:
Open a document, and place the insertion point where you want the special character or symbol to appear.
Choose Edit > Special Characters to open the Character Viewer, or choose Show Character Viewer from the Input menu in the menu bar (looks like a flag or character).
Choose the type of characters you want to see from the View pop-up menu.
If you don’t see the View pop-up menu, click the button in the upper-right corner of the Character Viewer to show the top portion of the window.
Click By Category, and then select a category on the left.
Double-click the symbol you want to use on the right.
If the character doesn’t appear in your document, you may be using an application that doesn’t support that character. Try using a different character or inserting the character in a different application.
You can also use the Keyboard Viewer to type special characters and symbols.