Owner's Manual

Appendix A: Categorical Listing of Operations 813
EndDlog See Dialog, page 807.
EndFor See For, page 819.
EndFunc See Func, page 820.
EndIf See If, page 826.
EndLoop See Loop, page 836.
EndPrgm See Prgm, page 850.
EndTBar See ToolBar, page 885.
EndTry See Try, page 886.
EndWhile See While, page 888.
entry() CATALOG
entry() ⇒
⇒⇒
⇒ expression
entry(
integer ) ⇒
⇒⇒
⇒ expression
Returns a previous entry-line entry from the
Home screen history area.
integer , if included, specifies which entry
expression in the history area. The default is 1,
the most recently evaluated entry. Valid range is
from 1 to 99 and cannot be an expression.
Note: If the last entry is still highlighted on the
Home screen, pressing ¸ is equivalent to
executing
entry(1).
On the Home screen:
1+1/x ¸
1
x
+ 1
1+1/entry(1) ¸ 2ì
1
x+1
¸
1
2ø (2ø x+1)
+ 3/2
¸ 5/3ì
1
3ø (3ø x+2)
entry(4) ¸
1
x
+ 1
exact() MATH/Number menu
exact( expression1 [, tol ]) ⇒
⇒⇒
⇒ expression
exact( list1 [, tol ]) ⇒
⇒⇒
⇒ list
exact( matrix1 [, tol ]) ⇒
⇒⇒
⇒ matrix
Uses Exact mode arithmetic regardless of the
Exact/Approx mode setting to return, when
possible, the rational-number equivalent of the
argument.
tol specifies the tolerance for the conversion; the
default is 0 (zero).
exact(.25) ¸ 1/4
exact(.333333) ¸
333333
1000000
exact(.33333,.001) 1/3
exact(3.5x+y) ¸
7ø x
2
+ y
exact({.2,.33,4.125})
¸
{1à5
33
100
33à8}