You can have multiple output parameters. For example, the following takes 2 input parameters then creates 4 output values:import arcpy
n1 = float(arcpy.GetParameterAsText(0))
n2 = float(arcpy.GetParameterAsText(1))
out1 = n1 + n2
arcpy.SetParameter(2, out1)
out2 = n1 - n2
arcpy.SetParameter(3, out2)
out3 = n1 * n2
arcpy.SetParameter(4, out3)
out4 = n1 / n2
arcpy.SetParameter(5, out4)
Results:[ATTACH=CONFIG]34829[/ATTACH]Just make sure to set the Direction to Output in the Parameter properties when creating the script tool:[ATTACH=CONFIG]34830[/ATTACH]