# Walter Schmidt

(v2.0 – 2003/02/12)

The default CM math fonts used by TEX do not include upright lowercase Greek characters, and many alternative math font sets don’t, either. (There are math fonts providing only an upright Greek alphabet, but that’s a different story.) However, mathematical constants such as π = 3.14... are sometimes required to be typeset in roman (i.e., upright) style, or one may need upright Greek to designate elementary particles.

As a workaround, the LATEX package upgreek makes the upright Greek characters from the ‘Euler’ or ‘Adobe Symbol’ typefaces available as math symbols. The lowercase letters are named \upalpha, \upbeta etc., whereas \Updelta, \Upgamma etc. create upper case.

Just like \alpha, \beta etc., these symbols work only in math mode, and their size is properly adjusted, when they are used in superscripts, subscripts or fractions.

At first sight, providing also the uppercase letters seems pointless, since \Delta, \Gamma, etc. are also upright by default. However, it may be useful to have all upright Greek letters available in the same style. Note that the uppercase letters were intentionally not named \upDelta etc., so as not to clash with other existent macro packages.

The typeface is selected using a package option, so you can choose what blends best with the other fonts used in your document:

[Euler]  Euler Roman/Bold (default)