00000nam 2200000zi 4500 9.873490 CaOODSP 20241203113649 m o d f cr bn||||||||| 190523s1989 onca ob f000 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- En13-5/89-53E-PDF Halfon, Efraim, author. An algorithm to plot Hasse diagrams on microcomputers and Calcomp plotters / Efraim Halfon, Jo-Ann Hodson and Karon Miles. Burlington, Ontario : National Water Research Institute, Canada Centre for Inland Waters, [1989]. 1 online resource (13, [2] pages ) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; no. 89-53 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (page 12). "A computer algorithm has been developed to plot Hasse diagrams. Hasse diagrams are often used in lattice and graph theory. At NWRI Hasse diagrams are used to display the ranting of the hazard of toxic contaminants in the environment and to rank contaminated sites, for example along the shores of Lake Ontario and Lake St. Clair"--Executive summary. Includes management perspective and abstract in French. gccst Software gccst Pollutants gccst Water quality Hodson, J. (Jo-Ann) author. Miles, Karon, author. Canada. Environment Canada. Canada Centre for Inland Waters. National Water Research Institute (Canada) NWRI contribution ; no. 89-53. (CaOODSP)9.844121 PDF 923 KB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-89-53-eng.pdf