infinite or NaN

"Infinite" and "NaN" are both special values in computer programming that represent non-numeric or invalid numeric values.

"Infinite" represents a value that is too large to be represented by the computer's memory capacity. This can happen when performing mathematical operations such as division by zero or exponentiation of a large number. In programming languages such as Python, the constant "inf" or "-inf" is used to represent infinite values.

"NaN" stands for "Not a Number" and is used to represent undefined or non-existent numeric values. This can happen when performing operations such as taking the square root of a negative number or dividing zero by zero. In programming languages such as Python, the constant "NaN" is used to represent NaN values.