@tab exponential function
@item @code{log(x)}
@tab natural logarithm
+@item @code{Li2(x)}
+@tab Dilogarithm
@item @code{zeta(x)}
@tab Riemann's zeta function
@item @code{zeta(n, x)}
upper part (i.e. continuous with quadrant II). The inverse
trigonometric and hyperbolic functions are not defined for complex
arguments by the C++ standard, however. Here, we follow the conventions
-used by CLN, which in turn follow the carefully structured definitions
+used by CLN, which in turn follow the carefully designed definitions
in the Common Lisp standard. Hopefully, future revisions of the C++
standard incorporate these functions in the complex domain in a manner
compatible with Common Lisp.