Aliases: is.finite is.infinite Inf NaN is.nan finite infinite
Keywords: programming math
### ** Examples pi / 0 ## = Inf a non-zero number divided by zero creates infinity
[1] Inf
0 / 0 ## = NaN
[1] NaN
1/0 + 1/0 # Inf
[1] Inf
1/0 - 1/0 # NaN
[1] NaN
stopifnot( 1/0 == Inf, 1/Inf == 0 ) sin(Inf)
Warning in sin(Inf): NaNs produced
[1] NaN
cos(Inf)
Warning in cos(Inf): NaNs produced
[1] NaN
tan(Inf)
Warning in tan(Inf): NaNs produced
[1] NaN