# Need to ask this question again

A few days ago, I asked about the continuity of a function, in regards to a problem on my homework. Something still seems wrong, even though today my professor insisted that the given definitions are correct. Look here: http://www.math.washington.edu/~sullivan/3261_sp10.pdf"

A function f(x,y) is continuous at a point (x0,y0) if f(x,y) is defined at (x0,y0), ....

A function f(x,y) is discontinuous at a point (x0,y0) if f(x,y) is defined at (x0,y0), .....

So if a function isn't defined, then it is neither continuous or discontinuous????????

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Dick
Homework Helper
According to those definitions, I'll agree. Yes, if it's not defined it's neither continuous nor discontinuous.

According to those definitions, I'll agree. Yes, if it's not defined it's neither continuous nor discontinuous.
Weird

Dick