logn(minus(numbers("per"), numbers("xxx"))) if numbers("per") > minus(numbers("per"), numbers("xxx")) else invert(logn(minus(numbers("per"), numbers("xxx")))) if invert(logn(minus(numbers("per"), numbers("xxx")))) > logn(minus(numbers("per"), numbers("xxx"))) else minus(numbers("per"), 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.