def tanpi(c):
"tan(pi*x)."
d = fpu.up(lambda: c.sup - c.inf)
if d != d or d >= 1.0:
return (-fpu.infinity, +fpu.infinity),
if 0.0 in cospi(interval.new((c,))):
def denan(x, ifnan):
return x if x == x else ifnan
return (
(denan(crlibm.tanpi_rd(c.inf), fpu.infinity), fpu.infinity),
(-fpu.infinity, denan(crlibm.tanpi_ru(c.sup), -fpu.infinity)))
else:
return (crlibm.tanpi_rd(c.inf), crlibm.tanpi_ru(c.sup)),
def tanpi(c):
"tan(pi*x)."
d = fpu.up(lambda: c.sup - c.inf)
if d != d or d >= 1.0:
return (-fpu.infinity, +fpu.infinity),
if 0.0 in cospi(interval.new((c, ))):
def denan(x, ifnan):
return x if x == x else ifnan
return (denan(crlibm.tanpi_rd(c.inf), fpu.infinity),
fpu.infinity), (-fpu.infinity,
denan(crlibm.tanpi_ru(c.sup),
-fpu.infinity))
else:
return (crlibm.tanpi_rd(c.inf), crlibm.tanpi_ru(c.sup)),