TeX/above

Synopsis

\above[dimen]

Description

\above is TeX's more general command for making fractions. Printing

a\above 0.5pt b

produces the fraction $\frac{a}{b}$ where the separating bar has thickness 0.5pt. Grouping may be required to make sure that not too much is included in the numerator and denominator. A good rule of thumb is to simply put braces around any fraction as in

{a\above 0.5pt b}

The primitives \over and \atop can be replicated in terms of \above as

\over = \above 0.4pt
\atop = \above 0pt

See Also

• \atop
• \atopwithdelims
• \over
• \overwithdelims