gradient[0](sum(mod(numbers("xxx") if numbers("yyy") > 2 *(numbers("xxx")) else numbers("per"), 2 *(numbers("xxx"))), numbers("xxx") if numbers("yyy") > 2 *(numbers("xxx")) else numbers("per")))
Some images will appear differently when resized as some of the functions which generate images are sensitive to the scale. We're working to improve this.