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• Pno% is the number that refers to the TeLiTab sets the TeLiTab sets in the Data slot. Pno% should be an integer value or a parameter which is assigned an integer value and is the number of theTeLiTab set theTeLiTab set in the expressions data slot.
• Ndim% is the number of dimensions, which is 2 for the POLYGON function.
• Npoints% is the number of points (X,Y) that are given in direct definition.
• @ObjFn() refers to the Object from which data will be used.
• TeLiTab$ refers TeLiTab$ refers to the string parameter that contains the TeLiTab data the TeLiTab data to be used.
• "ColLab$_1" and @ObjColPar_1 refer to the column containing the first values.
• "ColLab$_2" and @ObjColPar_2 refer to the column containing the second values.
• X_11, Y_12, X_21, Y_22,.., X_n1, Y_n2 are the X and Y coordinates of the points of the polygon that are given in the direct definition.
• X0, Y0 are the X and Y coordinates of point (X0, Y0).
• XN, YN are the X and Y coordinates of point (XN, YN).
• Mode% is the option of the function. There are 25 mode. See Remarks for all options.

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POLYGON(1, 2, "XC", "YC", X0, Y0, XN, YN, Mode)

with the TeLiTab of the TeLiTab of the previous example in the dataset gives the possibility to calculate properties of a line section within the polygon. Lets take a look at a line between the points (0,0) and (2,2):

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POLYGON(1, 2, "XC", "YC", X0, Y0, 0, 0, Mode)

with the TeLiTab of the TeLiTab of the first example in the dataset gives the possibility to determine whether a point is located inside or outside a polygon. Lets take a look at the point (-0.5 , 0.5):

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