Calculator User Manual

Chapter 20: A to Z Function and Instruction Reference
345
20ATOZ.DOC TI-86, Chap 20, US English Bob Fedorisko Revised: 02/13/01 2:42 PM Printed: 02/13/01 3:05 PM Page 345 of 11820ATOZ.DOC TI-86, Chap 20, US English Bob Fedorisko Revised: 02/13/01 2:42 PM Printed: 02/13/01 3:05 PM Page 345 of 118
Repeat
‡ program editor
CTL menu
(Repea shows
on menu)
:Repeat
condition
:
commands-to-repeat
:End
:
commands
Executes
commands-to-repeat
until
condition
is true.
Program segment:
©
:6
¶
N
:1
¶
Fact
:Repeat N<1
: Fact
¹
N
¶
Fact
: N
N
1
¶
N
:End
:Disp "6!=",Fact
©
Return
‡ program editor
CTL menu
(Retur shows
on menu)
Return
In a subroutine, exits the subroutine and returns to the
calling program. In the main program, stops execution
and returns to the home screen.
Program segment in the calling program:
©
:Input "Diameter:",DIAM
:Input "Height:",HT
:AREACIRC
:VOL=AREA
¹
HT
:Disp "Volume =",VOL
©
AREACIRC subroutine program:
PROGRAM:AREACIRC
:RADIUS=DIAM/2
:AREA=
p
¹
RADIUS
2
:Return
RK
† graph format screen
(scroll down to
second screen)
RK
In
DifEq
graphing mode, uses an algorithm based on the
Runge-Kutta method to solve differential equations.
Typically,
RK
is more accurate than
Euler
but takes
longer to find the solutions.