I know undefined points are points where... well... the function is undefined, but what are those points? I know that 1/x has an undefined point at x=0, but does log(x) has an undefined point at let's say x=0? Thanks.
Answers (2)
"In Geometry, we have several undefined terms: point, line and plane. From these three undefined terms, all other terms in Geometry can be defined. ... A line is defined as something that extends infinitely in either direction but has no width and is one dimensional while a plane extends infinitely in two dimensions.
Three Undefined Terms: Point, Line, and Plane - Concept - Geometry ...
Brightstorm › geometry-building-blocks"
"Undefined. An expression in mathematics which does not have meaning and so which is not assigned an interpretation. For example, division by zero is undefined in the field of real numbers."
y=1/x
Any value of x is referred to as a "point" whether it is plotted on a graph or not. When the value is plotted on a graph, that that is called a "point" but it's not the same sort of a point when we choose a value of x. So if we choose x=0 then that is an undefined "point", but it can not be plotted on the graph because there is no such "point".
Get the point?
But what is considered to be an undefined point? Only division by 0?