Try This

“Try This” features short programs to show off your computer, impress your family and friends, and tickle your imagination when SYNC arrives at your place. Send your contributions to: Try This, SYNC, 39 E. Hanover Ave., Morris Plains, NJ 07950.

4K ROM; 1K RAM

Enter the following lines:

10 PRINT 1;
20 POKE 16427,14
30 RUN

Press RUN and NEWLINE. Observe the results. When you see the error code, press any key except SHIFT, then press RUN and NEWLINE again. Can you figure out how this works? Our thanks to:

James Grosjean
[address omitted]
Chatham, NJ

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8K ROM: 1K RAM

Enter the following lines:

10 PRINT .;
20 GOTO 10

Put the computer in SLOW mode. Press RUN and ENTER. Observe the results. Can you figure out how this works? Our thanks to The Ultimate Magazine (reprinted with permission) and:

Neil Dewhurst
[address omitted]
Ribchester, Nr. Preston
United Kingdom

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8K ROM; 1K RAM

Enter the following lines.

 5 FAST
10 FOR A=0 TO 16 STEP .05
20 LET R=8*COS (A)*COS (2*A)
30 PLOT (13+(4*R*COS (A))),(22+(4*R*SIN (A)))
40 NEXT A
50 PRINT AT 9,19;"[inv O]"

Press RUN and ENTER. Observe the results. Our thanks to:

Neal Neirick
[address omitted]
Des Plaines, IL