Download Mathematical Computations Using Bergman

180
CHAPTER 4. SOME USEFUL APPENDIXES
(OFF id) : FEXPR
Sets the identifier whose name is the name of the identifier id preceeded
by an asterisk (∗) to NIL. (Unspecified return value.)
(ON id) : FEXPR
Sets the identifier whose name is the name of the identifier id preceeded
by an asterisk (∗) to T. (Unspecified return value.)
(ONENOOPFCN1 any) : EXPR
(ONENOOPFCN2 any1 any2) : EXPR
Just returns 1. (Useful with COPYD in case some no-operator variants
are wanted in some modes.)
(PAIRCOPYD alist) : EXPR
alist should be an association list of identifiers; the second one in each
pair should be a function name. PAIRCOPYD copies the function
definition from the second identifier to the first one in each of the
pairs. (Unspecified return value.)
(PNTH lst no) : EXPR
lst should be a list of LENGTH greater than or equal to the positive
integer no. Returns the no’th top level pair of the list (so that (PNTH
lst 1) is EQ to lst, (PNTH lst 2) is EQ to (CDR lst), et cetera).
(PRINTX any) : EXPR
Sometimes succeeds in printing an ”unprintable object”.
(PROMPTREAD string) : EXPR
A READ is performed, and the result returned. If reading is connected
with prompting, the string should be used for prompt.
(PRUNEFIRSTDEGREEITEM dlany int) : EXPR
dlany must be a non-empty degree list. If the first degree appearing on
dlany is int, then (CDR dlany) is returned; else, dlany is returned.