User:Glome83

Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "http://localhost:6011/en.wikipedia.org/v1/":): {\displaystyle {{{\left( -{E \ n \ {e \sp {\left( i \ a \ w \right)}}} -{E \ n \ {e \sp {\left( -{i \ a \ w} \right)}}} \right)} \ {\sin \left( {{a \ n}} \right)}} -{i \ E \ w \ {\cos \left( {{a \ n}} \right)} \ {e \sp {\left( i \ a \ w \right)}}}+{i \ E \ w \ {\cos \left( {{a \ n}} \right)} \ {e \sp {\left( -{i \ a \ w} \right)}}}} \over {{w \sp 2} -{n \sp 2}} \leqno(38) }