Texas Instruments PLUS TI-89 - Manual (Page 461)

444 Appendix A: Functions and Instructions
8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 444 of 132
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:
education.ti.com
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.
Exit CATALOG
Exit
Exits the current For , While , or Loop block.
Exit is not allowed outside the three looping
structures ( For , While , or Loop ).
Program listing:
:0! temp
:For i,1,100,1
: temp+i! temp
: If temp>20
: Exit
:EndFor
:Disp temp
Contents of temp after execution: 21
exp 4 list() CATALOG
exp 4 list( expression , var ) ⇒ list
Examines expression for equations that are
separated by the word “or,” and returns a list
containing the right-hand sides of the
equations of the form
var=expression . This
gives you an easy way to extract some
solution values embedded in the results of
the
solve() , cSolve() , fMin() , and fMax()
functions.
Note: exp 4 list() is not necessary with the
zeros and cZeros() functions because they
return a list of solution values directly.
solve(x^2ì xì 2=0,x) ¸ x=2 or
x=ë 1
exp 4list(solve(x^2ì xì 2=0,x),x)
¸
{л 1 2}