VTech Precomputer Power Pad Plus User Manual

Page 48

Advertising
background image

44

LOOPING

A loop is a set of one or more instructions. These instructions can be repeated as many
times as you want. You can create a loop with a GOTO statement.

A program like the following will run continually:

10

INPUT “GIVE ME A NUMBER”;N

20

PRINT “YOUR NUMBER IS”;N

30

GOTO 10

RUN

You can modify the program to get out of a loop by using an IF statement to control the
loop like the program that calculates the area of a rectangle.

Another way to create a loop is through the use of the FOR and NEXT statements. These
statements surround the instructions that you want to repeat.

For example, type the following:

NEW

10

FOR N=1 TO 10

press ENTER

20

PRINT “HELLO”

press ENTER

30

NEXT N

press ENTER

RUN

The word “HELLO” appears 10 times on the screen. You can change line 20 to print
the value of N every time the loop repeats.

Type:

20

PRINT “N IS”;N

press ENTER

Advertising