gradient[0](sum(mod(numbers("per") if 2 *(numbers("xxx")) > numbers("xxx") else numbers("yyy"), 2 *(numbers("xxx"))), numbers("per") if numbers("yyy") > numbers("xxx") else 2 *(numbers("xxx"))))
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.