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Text File  |  1993-11-07  |  193b  |  5 lines
  1. * partsum                                             external
  2. partsum(y,x) gives partial sum of y (symbolic sum).
  3. See also: infsum, sum.
  4. e.g. partsum(n^2, n) gives 1/6 n (1 + n) (1 + 2 n)
  5.