The Bat Sign backend logic
https://www.google.co.za/search?q=2*sqrt(-abs(abs(x)-1)*abs(3-abs(x))%2F((abs(x)-1)*(3-abs(x))))(1%2Babs(abs(x)-3)%2F(abs(x)-3))sqrt(1-(x%2F7)%5E2)%2B(5%2B0.97(abs(x-.5)%2Babs(x%2B.5))-3(abs(x-.75)%2Babs(x%2B.75)))(1%2Babs(1-abs(x))%2F(1-abs(x)))%2C-3sqrt(1-(x%2F7)%5E2)sqrt(abs(abs(x)-4)%2F(abs(x)-4))%2Cabs(x%2F2)-0.0913722(x%5E2)-3%2Bsqrt(1-(abs(abs(x)-2)-1)%5E2)%2C(2.71052%2B(1.5-.5abs(x))-1.35526sqrt(4-(abs(x)-1)%5E2))sqrt(abs(abs(x)-1)%2F(abs(x)-1))%2B0.9&oq=2*sqrt(-abs(abs(x)-1)*abs(3-abs(x))%2F((abs(x)-1)*(3-abs(x))))(1%2Babs(abs(x)-3)%2F(abs(x)-3))sqrt(1-(x%2F7)%5E2)%2B(5%2B0.97(abs(x-.5)%2Babs(x%2B.5))-3(abs(x-.75)%2Babs(x%2B.75)))(1%2Babs(1-abs(x))%2F(1-abs(x)))%2C-3sqrt(1-(x%2F7)%5E2)sqrt(abs(abs(x)-4)%2F(abs(x)-4))%2Cabs(x%2F2)-0.0913722(x%5E2)-3%2Bsqrt(1-(abs(abs(x)-2)-1)%5E2)%2C(2.71052%2B(1.5-.5abs(x))-1.35526sqrt(4-(abs(x)-1)%5E2))sqrt(abs(abs(x)-1)%2F(abs(x)-1))%2B0.9&aqs=chrome.0.57.945j0&sourceid=chrome&ie=UTF-8Graphs / Math / Batman