to type any of these characters in Microsoft Word for Windows type in the formula then strike Alt + X; on Mac OS activate Unicode Hex Input

Ā = 0100	ā = 0101	Ă = 0102	ă = 0103	Ǎ = 01CD	ǎ = 01CE
Ē = 0112	ē = 0113	Ĕ = 0114	ĕ = 0115	Ě = 011A	ě = 011B
Ī = 012A	ī = 012B	Ĭ = 012C	ĭ = 012D	Ǐ = 01CF	ǐ = 01D0
Ō = 014C	ō = 014D	Ŏ = 014E	ŏ = 014F	Ǒ = 01D1	ǒ = 01D2
Ū = 016A	ū = 016B	Ŭ = 016C	ŭ = 016D	Ǔ = 01D3	ǔ = 01D4

homepage