from sage.all_cmdline import *
_sage_const_2 = Integer(2); _sage_const_1 = Integer(1); _sage_const_0 = Integer(0); _sage_const_184 = Integer(184); _sage_const_191 = Integer(191)
import sagetex
_st_ = sagetex.SageTeXProcessor('presentation', version='2012/01/16 v2.3.3-69dcb0eb93de', version_check=True)
_st_.blockbegin()
try:
__tmp__=var("x"); f = symbolic_expression(cos(_sage_const_2 *x) / (_sage_const_1 +x**_sage_const_2 )).function(x)
except:
_st_.goboom(_sage_const_184 )
_st_.blockend()
try:
_st_.inline(_sage_const_0 , latex(f(x)))
except:
_st_.goboom(_sage_const_191 )
try:
_st_.inline(_sage_const_1 , latex(diff(f,x)(x)))
except:
_st_.goboom(_sage_const_191 )
_st_.endofdoc()