  New analytic formulas for one-loop three-point Feynman integrals in general
space-time dimension ($d$) are presented in this paper. The calculations are
performed at general configurations for internal masses and external momenta.
The analytic results are expressed in terms of hypergeometric series $_2F_1$,
$_3F_2$ for special cases and Appell $F_1$ for general cases. Furthermore, we
cross-check our analytic results with other references which have carried out
the integrals in several special cases.
