The initialisms ad, ce, am, and pm are sometimes typeset in small caps. For example, the style of some publications, like The New Yorker and The Economist, is to use small caps for acronyms and initialisms longer than three letters -thus "U.S." and "W.H.O." in normal caps but " nato" in small caps. Small caps are often used in sections of text that are unremarkable and thus a run of uppercase capital letters might imply an emphasis that is not intended. A work-around to simulate real small capitals is to use a one-level bolder version of the small caps generated by such systems, to match well with the normal weights of capitals and lowercase, especially when such small caps are extended about 5% or letter-spaced a half point or a point. However, this will make the characters look somewhat out of proportion.
SMALL CAPS IN WORD 2010 PROFESSIONAL
How this is implemented depends on the typesetting system some can use true small caps glyphs that are included in modern professional font sets but less complex digital fonts do not have small-caps glyphs, so the typesetting system simply reduces the uppercase letters by a fraction (often 1.5 to 2 points less than the base scale). Many word processors and text-formatting systems include an option to format text in caps and small caps, which leaves uppercase letters as they are, but converts lowercase letters to small caps. When the support for the petite caps feature is absent from a desktop-publishing program, x-height small caps are often substituted. OpenType fonts can define both forms via the "small caps" and the "petite caps" features. To differentiate between these two alternatives, the x-height form is sometimes called petite caps, preserving the name "small caps" for the larger variant.
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For example, in some Tiro Typeworks fonts, small caps glyphs are 30% larger than x-height, and 70% the height of full capitals. In fonts with relatively low x-height, however, small caps may be somewhat larger than this.
Typically, the height of a small capital glyph will be one ex, the same height as most lowercase characters in the font. Well-designed small capitals are not simply scaled-down versions of normal capitals they normally retain the same stroke weight as other letters and have a wider aspect ratio for readability.
Small caps can be used to draw attention to the opening phrase or line of a new section of text, or to provide an additional style in a dictionary entry where many parts must be typographically differentiated. For example, the text "Text in small caps" appears as Text in small caps in small caps. Small caps are used in running text as a form of emphasis that is less dominant than all uppercase text, and as a method of emphasis or distinctiveness for text alongside or instead of italics, or when boldface is inappropriate. This is technically not a case-transformation, but a substitution of glyphs, although the effect is often approximated by case-transformation and scaling. In typography, small caps (short for " small capitals") are lowercase characters typeset with glyphs that resemble uppercase letters (capitals) but reduced in height and weight, close to the surrounding lowercase letters or text figures.
Like Werner's solution using small caps, this solution assumes that the leading letters are entered as capitals.True small caps (top), compared with scaled small caps (bottom), generated by Writer
SMALL CAPS IN WORD 2010 CODE
One can adapt expl3 code that egreg published in TUGBoat recently ( TUGboat, Volume 39 (2018), No.