Check vectors on equality

a=c(3,4)
b=c(3,5)
d=c(3,4)

a==b
[1]  TRUE FALSE

check 1
all(a==b)
[1] FALSE
all(a==d)
[1] TRUE

check 2
all.equal(a,b)
[1] "Mean relative difference: 0.25"
#if we need TRUE or FALSE
isTRUE(all.equal(a,b))
[1] FALSE
isTRUE(all.equal(a,d))
[1] TRUE