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

/* code_begins */

{{{
sage: diff(x^n, x)        # the output looks funny, but is correct
n*x^(n - 1)
sage: diff(x^2 * log(x+a), x)
2*x*log(a + x) + x^2/(a + x)

}}}

/* code_ends */

 * '''Solution by''': 
   * <jaimin j patel>, <student>, <Organization>
   * <Your Name>, <Profession>, <Organization>