Texas Instruments voyage 200 User Manual - Page 813

EndLoop See Loop, page 839. EndPrgm See Prgm, page 854. EndTBar See ToolBar, page 890. EndTry See Try, page 890. EndWhile See While, page 893. 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+1/entry(1) ¸ ¸ ¸ entry(4) ¸ 1 x + 1 2 ì 1 x+1 2ø 1 (2ø x+1) + 3/2 5 / 3 ì 3ø 1 (3ø x+2) 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) ¸ exact(.333333) ¸ exact(.33333,.001) 1/4 333333 1000000 1/3 exact(3.5x+y) ¸ 7ø2 x + y exact({.2,.33,4.125}) ¸ {1à5 33 100 33à8} Exec CATALOG Exec string [, expression1] [, expression2] ... Executes a string consisting of a series of Motorola 68000 op-codes. These codes act as a form of an assembly-language program. If needed, the optional expressions let you pass one or more arguments to the program. For more information, check the TI Web site: http://www.ti.com/calc Warning: Exec gives you access to the full power of the microprocessor. Please be aware that you can easily make a mistake that locks up the calculator and causes you to lose your data. We suggest you make a backup of the calculator contents before attempting to use the Exec command. Appendix A: Functions and Instructions 815