def eval(cls, m):
if m.is_odd:
return S.Zero
if m.is_Integer and m.is_nonnegative:
from sympy.mpmath import mp
m = m._to_mpmath(mp.prec)
res = mp.eulernum(m, exact=True)
return Integer(res)
def eval(cls, m):
if m.is_odd:
return S.Zero
if m.is_Integer and m.is_nonnegative:
from sympy.mpmath import mp
m = m._to_mpmath(mp.prec)
res = mp.eulernum(m, exact=True)
return Integer(res)
def _eval_evalf(self, prec):
m = self.args[0]
if m.is_Integer and m.is_nonnegative:
from sympy.mpmath import mp
from sympy import Expr
m = m._to_mpmath(prec)
with workprec(prec):
res = mp.eulernum(m)
return Expr._from_mpmath(res, prec)
def _eval_evalf(self, prec):
m = self.args[0]
if m.is_Integer and m.is_nonnegative:
from sympy.mpmath import mp
from sympy import Expr
m = m._to_mpmath(prec)
with workprec(prec):
res = mp.eulernum(m)
return Expr._from_mpmath(res, prec)
def eval(cls, m, evaluate=None):
if evaluate is None:
evaluate = global_evaluate[0]
if not evaluate:
return
if m.is_odd:
return S.Zero
if m.is_Integer and m.is_nonnegative:
from sympy.mpmath import mp
m = m._to_mpmath(mp.prec)
res = mp.eulernum(m, exact=True)
return Integer(res)
