FeynHelpers manual (development version)

PaXDiLog

PaXDiLog corresponds to DiLog in Package-X.

See also

Overview.

Examples

(*Just to load Package-X*)
  PaXEvaluate[A0[1]];

PaXDiLog uses X`DiLog for numerical evaluations

PaXDiLog[1, 2]

π26\frac{\pi ^2}{6}

X`DiLog[1, 2]

π26\frac{\pi ^2}{6}

The same goes for derivatives and series expansions

D[PaXDiLog[x, \[Alpha]], x]

log(1x+iαϵ)x-\frac{\log (1-x+i \alpha \epsilon )}{x}

Series[PaXDiLog[x, \[Alpha]], {x, 0, 5}]

x+x24+x39+x416+x525+O(x6)x+\frac{x^2}{4}+\frac{x^3}{9}+\frac{x^4}{16}+\frac{x^5}{25}+O\left(x^6\right)