  Math Central - mathcentral.uregina.ca  Quandaries & Queries    Q & Q    Topic: continuous function   start over

2 items are filed under this topic.    Page1/1            Continuity on a closed interval 2014-09-21 From Pragya:The trouble I'm having is as follows : a continuous function is most of the times defined on a closed interval, but how is it possible to define it on a closed interval ,because to be continuous at endpoints of the interval the function's limit must exist at that endpoint,for which it has to be defined in its neighborhood,but we don't know anything about whether the function is always defined in the neighborhood. Please help...Answered by Penny Nom.     The continuity of f(x,y)=ln(x^2+y^2) 2013-02-17 From anu:the question says we have to find the points in the plane where the function is continuous: f(x,y)=ln(x^2+y^2) . here we aren't given a particular point (x,y) where we have to check a function's continuity. what is to be done if we have to check continuity over the whole domain of the function? please help .Answered by Harley Weston.      Page1/1    Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.    about math central :: site map :: links :: notre site français