Mathematical and Numerical Constants

The following table includes the built-in mathematical and numerical constants. The names of these constants are reserved names that you cannot use when creating user-defined variables and parameters.

Table 5-5: Mathematical and Numerical Constants

Name	Description
eps	Floating point relative accuracy (machine epsilon, 2−52 or about 2.2204·10−16, for double floating point numbers).
i, j	Imaginary unit, .
inf, Inf	Infinity, ∞. A value larger than what can be handled with floating-point representation.
NaN, nan	Not-a-number. An undefined or unrepresentable value such as the result of 0/0 or inf/inf.
pi	Pi (about 3.141592653589793).