A $C^\infty$ nowhere analytic function. A forgotten example from 1888.  http://hdl.handle.net/10338.dmlcz/501871 22 A $C^\infty$ nowhere analytic function. A forgotten example from 1888 http://hdl.handle.net/10338.dmlcz/501870 A $C^\infty$ nowhere analytic function. A forgotten example from 1888