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