Exposition Style

Network Working Group S. Crocker Request for Comments: #154 UCLA NIC: #6759 12 May 1971 Categories: C.4 Updates: #107 Obsoletes: #132

Exposition Style

As a pedagogical device for describing functions such as the one below

| | +----------------- | /: | / : | / : | / : | / : | / : -----+------------------------------------ | a |

where two formulae, f1 and f2, are necessary for adjoining domains but the function is continous at the boundary point, I usually write the description in the form

f(x) = f1(x) for x =< a f(x) = f2(x) for x >= a

The astute reader will note that the domains overlap, but that f1(a) = f2(a), so no semantic ambiguity obtains.

[ This RFC was put into machine readable form for entry ] [ into the online RFC archives by Naoki Matsuhira 5/97 ]

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