Re: mathlib

[Eric Wing <ewmailing@...>]

On 4/7/14, Roberto Ierusalimschy <roberto@inf.puc-rio.br> wrote:
>> But since that is not on the table, the main argument in favour of
>> precisely sinh, cosh, tanh is that they belong to a class of functions
>> called "elementary" by mathematicians, which are commonly taught
>> even to engineering students in English-speaking countries, and
>> that their implementation involves subtle points.
>
> That is a good argument. Do you have any reference about that (e.g., a
> list of those "elementary" functions)?
>

Just my data point, but I don't remember ever encountering those
functions or hyperbolic geometry until I went to grad school and even
that was kind of a fluke. I went through the University of California
system in an engineering major that was jointly administered by the EE
and CS departments.

I finally encountered hyperbolic geometry in a graduate level elective
course for scientific visualization which was actually outside both my
departments, under the Mechanical Engineering department, and taught
by a guest professor from the San Diego Supercomputer Center and not
directly from the school itself. I think we implemented the functions
ourselves and I did not notice those functions were in the C library
until this discussion.

Thanks,
Eric
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