root

const mpreal root ( const mpreal & v, unsigned long int k, mp_rnd_t rnd_mode = mpreal::get_default_rnd() )

friend

Definition at line 2261 of file mpreal.h.

{
    mpreal y(0, mpfr_get_prec(x.mpfr_srcptr()));
#if (MPFR_VERSION >= MPFR_VERSION_NUM(4,0,0))
    mpfr_rootn_ui(y.mpfr_ptr(), x.mpfr_srcptr(), k, r);
#else
    mpfr_root(y.mpfr_ptr(), x.mpfr_srcptr(), k, r);
#endif
    return y;
}

References get_default_rnd(), mpfr_ptr(), mpreal(), root, and x.

Referenced by root.