/ 1 \ lim cos|------| x->-pi+ \pi + x/
Limit(cos(1/(pi + x)), x, -pi)
<-1, 1>
= 1.8945383983815e-57
/ 1 \ lim cos|------| x->-pi- \pi + x/
= 1.89453825009969e-57
1.8945383983815e-57