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Name(s): plot_equation1: {equation, xmin, xmax} = args
2: points = this:points(@args)
3: text = this:draw_grid()
4: for x in (points)
5: x[1] = x[1] + -1 * xmin
6: endfor
7: "Last modified by Patrick (#4017) on Fri Nov 23 14:49:28 2001 MST."