Holdorf, H and Donahue, J 1990 Landforms for soil surveys in the Northern Rockies Montana Forest and Conservation Experiment Station, School of Forestry, University of Montana, Misc Publ No 51 26 p
int Henry Draper Catalog (HD) number DM_Catchar Durchmusterung catalog ID, ''BD'', ''CD'', ''CP'' DMchar Durchmusterung catalog number, SZZNNNNNC Giclaschar Giclas number LHSchar LHS number Numberchar Number, see comment; V=Vyssotsky number; U=UGPMF number; W=white dwarf (EG or Gr number) Remarkschar Additional identifications and remarks Go back to main index webmaster@ucolick org A Service of the Computing Support Group UCO/Lick Observatory University of California Santa Cruz, CA 95064 Tel: +1 408 459 2630 Fax: +1 408 454 9863
Health Department - Local governing authority which oversees the health and often the mental health agencies within its specific jurisdiction
Hit Dice that a character has earned In a PC, this equals the number of levels the character has earned in all classes
High Density Applies to 3 1/2" floppy disk drives and diskettes Refers to a storage capacity of 1 44 Mbytes HD diskettes can be identified by a "HD" near the silver cover Diskettes without a HD are DD (Double Density) diskettes with approximately one-half the storage capacity (720 Kbytes)
An abbreviation for Hard Disk In the case of recording, it refers to a hard disk based digital audio recorder
Returns the head of the list - that is the first element of a list - hd ["one", "two", "three"]; val it = "one" : string The functions hd and tl are very basic functions, they do not show up in ML programs so often as they might because pattern matching often makes their use unnecessary A typical recursive function in ML might be defined as follows using pattern matching: fun sum nil = 0 | sum(h: : t) = h + sum t; Without pattern matching we would use hd, tl and null fun sum x = if null x then 0 else (hd x) + sum(tl x)