Currently plot_mandelbrot() saves an image to disk. This is not advisable because the word plot is usually not used for that in R. Make a save_mandelbrot() or save_fractal() function for that and rewrite plot_mandelbrot() to just display the fractal.
Currently
plot_mandelbrot()saves an image to disk. This is not advisable because the wordplotis usually not used for that in R. Make asave_mandelbrot()orsave_fractal()function for that and rewriteplot_mandelbrot()to just display the fractal.