Variation and sign tables with tableau
Abstract: We describe here a package, tableau.sty, created by N. Kisselhoff, very useful especially for calculus courses. It aids in the construction of variation and sign tables for the study of functions. The package provides a new environment based on PSTricks.
Cristina Blaga is an Assistant Professor of Astronomy at the Faculty of Mathematics and Computer Sciences of the "Babeş-Bolyai" University in Cluj-Napoca, Romania.
Paul Blaga is an Assistant Professor of Geometry at the Faculty of
Mathematics and Computer Sciences of the "Babeş-Bolyai" University
in Cluj-Napoca, Romania. He started using LaTeX in the early 1990's.
Initially, his interest was just for writing scientific papers, but
afterwards he became more and more involved and gradually turned into
a great LaTeX fan.
He has served several years as an editor of the mathematical journal
Studia Universitatis Napocensis, Mathematica and was responsible for
switching it to LaTeX in the late 1990's. He is also the co-author of
a book on LaTeX.
His main interests in LaTeX are related, especially, to the graphical capabilities -- not only commutative diagrams, but also more complicated drawings, made, for instance, with PSTricks.