Nothing
.exprel <- texmex:::.exprel
## first check some simple values
values <- c(-Inf, NA, seq(-5, 5, length.out=10))
r.values <- expm1(values) / values
exprel.values <- .exprel(values)
expect_equal(exprel.values, r.values,
info="exprel: value tests")
## the naive R code doesn't compute these right so force the
## computation.
values <- c(Inf, 0)
exprel.values <- .exprel(values)
desired.values <- c(Inf, 1)
expect_equal(exprel.values, desired.values,
info="exprel: special value tests")
## and here's a different special case
expect_true(is.nan(.exprel(0/0)),
info="exprel: NaN handling")
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