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Question: How to Solve this Problem? About proc and sum

Question:How to Solve this Problem? About proc and sum

piggy1983 0
integer sum proc
January 06 2011
0

 x := proc (i::integer)

      return i^2;

end proc:

sum(x(m),m=1..3);

Error, invalid input: x expects its 1st argument, i, to be of type integer, but received i.

 

If I want to reserve the ::integer declaration, How to solve this problem. I know if there is no ::integer declaration,then everything is OK.
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