Texas Instruments TI-89 사용자 설명서

Programming

 582

•

Control structures such as 

 commands use a conditional test to decide 

which part of a program to execute.

•

Loops commands such as 

 repeat a group of commands.

 

Using Indentation

Using Indentation

Using Indentation

Using Indentation

Displaying Calculated Results

Displaying Calculated Results

Displaying Calculated Results

Displaying Calculated Results

In a program, calculated results are not displayed unless you use an output command. 
This is an important difference between performing a calculation on the Home screen 
and in a program.

For more complex programs that 
use 

 and loop structures 

such as 

, you can make 

the programs easier to read and 
understand by using indentation.

:If x>5 Then

:  Disp "x is > 5"

:Else

:  Disp "x is < or = 5"

:EndIf

These calculations will not 
display a result in a program 
(although they will on the Home 
screen).

:12

ù

6

:cos(

p

/4)

:solve(x^2–x–2=0,x)

Output commands such as 

 

will display a result in a program.

:Disp 12

ù

6

:Disp cos(

p

/4)

:Disp solve(x^2–x–2=0,x)