Brobdingnag (version 1.2-9)

infinite-methods: Infinite brobs and glubs

Description

Brobdingnagian and Glubbdubdribian infinity

Usage

# S4 method for brob
is.infinite(x)
# S4 method for glub
is.infinite(x)
# S4 method for brob
is.finite(x)
# S4 method for glub
is.finite(x)

Arguments

x

vector of class brob or glub

Author

Robin K. S. Hankin

Details

For a Brobdingnagian number, is.infinite() returns TRUE if the exponent is infinite.

A Glubbdubdribian number is infinite if either the real or imaginary component is infinite.

Function is.finite() is simply the logical negation of is.infinite().

Examples

is.infinite(brob(c(1,4,Inf)))

is.infinite(glub(3,Inf))
is.infinite(glub(Inf,3))


is.infinite(exp(1e300))
is.infinite(brob(1e300))
# (Brobdingnagian infinity is bigger than regular infinity ;-)