How a geometric artboard uses polar coordinates to draw function images

Step one establishes the polar coordinate system. Open the Geometry artboard, click the "Drawing" menu above, select "Coordinate grid"--"polar grid" command in its Pull-down menu, then set up the polar coordinate system.

Example of establishing a polar coordinate system in a geometric artboard

Step two to establish a triangular axis. Mouse in the coordinate system anywhere right button, in the pop-up shortcut option to select "Triangle Axis", in the pop-up dialog box click "Yes", so that in the polar coordinate system set up a triangular axis, as shown in the following figure.

To establish an example of a triangular axis in a geometric artboard

Step three to draw a function image. Click the Drawing menu above, select "Draw new function" in its Drop-down menu, and then pop up the new Function dialog box, enter the function expression shown in the following figure, and click OK.

Enter a function expression example under new function drawing

Step four This completes the drawing of the new function image of the trigonometric product, and the final function image is shown in the following figure.

Example of a function image drawn in a geometric artboard