||'''Book'''|| Advanced Engineering Mathematics ||
 ||'''Author'''|| Erwin Kreyszig ||
 ||'''Edition'''|| 8th Edition ||

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{{{
# Prob 1 - verification that a given function is a solution
var('c1 c2 x')
y=c1*exp((1+i)*x)+c2*exp((1-i)*x)
derivative(y,x,x)-2*derivative(y,x)+2*y
}}}

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 * '''Solution by''': 
   * <Aniket Basu>,<Mathematical Physicist>, <ISI Kolkata>