To illustrate the usage of contour plots, we will use the volcano dataset from the rgl package. The volcano dataset can be thought of as representing the longitudinal, latitudinal, and height data of ...

One continuous line drawing of food tools. Spoon fork and knife for decoration restoran menu ot banner in simple linear style. Hand drawn sign cafe. Editable stroke. Doodle vector illustration. Flying ...

Birthday cake in continuous line art drawing style. Traditional birthday cake with candle on the top minimalist black linear sketch isolated on white background. Vector illustration continuous line ...