Hi, I don't know why this plot doesn't work ? It tells me the domain is wrong ? I don't understand why ? Any help ? Regards Henri
using Plots x=linspace(-2,2) f(x) = sqrt(4-x^2) g(x) = -sqrt(4-x^2) h(x) = sqrt(-x^2+2*x) k(x) = -sqrt(-x^2-2*x) plot([g,f,h,k],-2,2,aspect_ratio=1)
