EvtDiLog.hh

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#ifndef EVTGENBASE_EVTDILOG_HH
#define EVTGENBASE_EVTDILOG_HH 1

// Include files

namespace EvtDiLog {
    double DiLog( double x );

    // constants for computation
    static const double Z1 = 1.;
    static const double HF = Z1 / 2.;
    static const double PI = 3.14159265358979324;
    static const double PI3 = PI * PI / 3.;
    static const double PI6 = PI * PI / 6.;
    static const double PI12 = PI * PI / 12.;
    static const double C[20] = {
        0.42996693560813697,  0.40975987533077105,  -0.01858843665014592,
        0.00145751084062268,  -0.00014304184442340, 0.00001588415541880,
        -0.00000190784959387, 0.00000024195180854,  -0.00000003193341274,
        0.00000000434545063,  -0.00000000060578480, 0.00000000008612098,
        -0.00000000001244332, 0.00000000000182256,  -0.00000000000027007,
        0.00000000000004042,  -0.00000000000000610, 0.00000000000000093,
        -0.00000000000000014, 0.00000000000000002};
}    // namespace EvtDiLog
#endif    // EVTGENBASE_EVTDILOG_HH