On 12 Aug 2004 at 21:09, Jeff Knope wrote: > > make "t1 (:d2x * (:x1y - :x2y) + :d2y * (:x2x - :x1x)) / :c > > make "t2 (:d1x * :t1 + :x1x - :x2x) / :d2x Jeff, Please try this: make "t1 (:d2x * (:x1y - :x2y) + :d2y * (:x2x - :x1x)) / :c make "t2 (:d1x * (:x1y - :x2y) + :d1y * (:x2x - :x1x)) / :c Daniel OpenWorld Learning