Brobdingnagian and Glubbdubdribian infinity
Usage
# S4 method for class 'brob'
is.infinite(x)
# S4 method for class 'glub'
is.infinite(x)
# S4 method for class 'brob'
is.finite(x)
# S4 method for class 'glub'
is.finite(x)
Arguments
- x
vector of class brob or glub
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().
Author
Robin K. S. Hankin
Examples
is.infinite(brob(c(1,4,Inf)))
#> [1] FALSE FALSE TRUE
is.infinite(glub(3,Inf))
#> [1] TRUE
is.infinite(glub(Inf,3))
#> [1] TRUE
is.infinite(exp(1e300))
#> [1] TRUE
is.infinite(brob(1e300))
#> [1] FALSE
# (Brobdingnagian infinity is bigger than regular infinity ;-)