Texas Instruments TI-89 사용자 설명서

Programming

 637

Example: Using Alternative Approaches

Example: Using Alternative Approaches

Example: Using Alternative Approaches

Example: Using Alternative Approaches

The example in the Previews module shows a program that prompts the user to enter an 
integer, sums all integers from 1 to the entered integer, and displays the result. This 
section gives several approaches that you can use to achieve the same goal.

Example 1

Example 1

Example 1

Example 1

This example uses 

 for input, a 

 loop to calculate the result, and 

 to display the result.

Ê 

Prompts for input on Program I/O screen.

Ë 

Converts string entered with InputStr to an expression.

Ì 

Loop calculation.

Í 

Displays output in a dialog box.

Ê

Ë

Ì
©Ì
©Ì

Ì

Í

:prog1()

:Prgm

:InputStr "Enter an integer",n

:expr(n)

!

n

:0

!

temp:1

!

I

:While i

{

n

:  temp+i

!

temp

:  i+1

!

I

:EndWhile

:Text "The answer is "&string(temp)

:EndPrgm