It's given function [math]f:\mathbb{R}^2\rightarrow \mathbb{R}\ f(x,y)=x^4-x^2+y^2[/math]. How do I examine if [math]f[/math] is continuous?
It's given function [math]f:\mathbb{R}^2\rightarrow \mathbb{R}\ f(x,y)=e^{-x^2-4y}[/math]. How do I examine if [math]f[/math] is continuous?