In plain language it means something which has no sensible meaning.
What does undefined mean in math examples.
More precisely undefined values occur when an expression is evaluated for input values outside of its domain.
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.
It got its name undefined from the fact that it is impossible to divide by zero.
Undefined means there is no answer to the expression at that point.
Sqrt 9 if no complex numbers ln 4 if no complex numbers.
Mathematically undefined can be defined as an expression which is impossible or an expression which does not have an exact definition or an expression that cannot be interpreted.
However something that is undefined today may be given a definition in the future.
The most famous example is that division by zero is undefined.
January 2015 in mathematics the term undefined is often used to refer to an expression which is not assigned an interpretation or a value such as an indeterminate form which has the propensity of assuming different values.
A good real life example of undefined slope is an elevator since an elevator can only move straight up or straight down.
What does undefined mean.
In arithmetic some arithmetic operations are called undefined.
Recall that 6 2 equal 3 because 3 2 6 however it is impossible to do 5 0 because there exist no number you can multiply 0 by to get 5.
Ambiguous complex infinity directed infinity division by zero ill defined indeterminate well defined.
For example in the equation ax by c the relation between x and y is indeterminate because you can t determine it without knowing the values of a b and c.
Broadly speaking undefined means there is no possible value or there are infinite possible values while indeterminate means there is no value given the current information.
In our time we can say that 5 8 is undefined in the set of positive integers.
In algebra a function is said to be undefined at points not in its domain.
For example square root of a negative number was undefined.
For example in the real number system is undefined for negative.
For instance during the time when the negative numbers were not yet invented the numerical expression 5 8 has no meaning.
