page-1983-101-timex-sinclair-programming-tricks

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97 Draw A Line98 Box Message99 Boxed Title100 Draw Bar Graphs101 Random Bar Graph112113114115117ABBASIC WordsError MessagesAppendix121125
IntroductionThere is a great need for practical, useful softwarefor the new generation of popular personal computers.The Sinclair ZX-81 and TIMEX/Sinclair 1000 computers,for example,are among the world's most popular. In fact,based on numbers sold they must be the most popular.The TIS 1000 and the ZX-81 are the same computer,except the T/S 1000 has more built-in memory than theZX-81. All 101 progams in this book have been written andtested on both computers and will run in the more-limitedZX-81 memory size. In other words, all of the programs inthis book will run on either machine.The TIS 1000 and the ZX-81 are powerful and versatileand flexible-but what can they do? Once you've purchasedthe hardware, you need down-to-earth ideas andworkable programs to make the computer work for you.The aim of this book is to provide more than 101 newand different ideas about how to use the computer andmore than 101 complete, ready-to-type-and-run programsyou can put to use immediately.11
Page 3: IMEX/ SJ,NCLAIRODO zx-B'IRDGRAMMING
Page 6 and 7: FIRST EDITIONFIRST PRINTING©1983 b
Page 8 and 9: TipTable of ContentsPageIntroductio
Page 10 and 11: Gee Whiz37 Gee Whiz I: Smart Adder
Page 14 and 15: The 101 programs in this handbook c
Page 16 and 17: author's training in writing BASIC-
Page 19 and 20: Fun & Games
Page 21 and 22: Program Listing10 RAND100 LET A=INT
Page 23 and 24: 140 IF R
Page 25 and 26: 130 PRINT •BACKWARD:•140 FOR J=
Page 27 and 28: 110 PRINT •PRESS ANY KEY TO PLAY
Page 29 and 30: 12 60-Second TimerA one-minute time
Page 31 and 32: 210 IF A$=•• THEN GOTO 200220 I
Page 33 and 34: convert those raw numbers to a batt
Page 35: The program here has a temporary su
Page 38 and 39: 1 Create a QuizOne of the most fasc
Page 40 and 41: line 10 for a.word. It is looking f
Page 42 and 43: program if you. don't get it right
Page 44 and 45: 90 PRINT100 PRINT "ADDRESS";TAB lO;
Page 46 and 47: 160 LET D$(7)=•sEE YOUR ANALYST"1
Page 48 and 49: 32 Sentence WriterPractice your Eng
Page 50 and 51: 160 IF GH THEN LET H=G180 GOTO 2020
Page 52 and 53: 30 PRINT A$;40 GOTO 1036 Question &
Page 55: Gee Whiz
Page 58 and 59: 38 Gee Whiz II:Three-Digit MysteryH
Page 60 and 61: 41 Gee Whiz V: SecondAlphabet Spott
Page 63:
Number Crunching
Page 66 and 67:
120 LET R::R+l125 LET W=j130 LET Z=
Page 68 and 69:
10 the computer asks for a number.
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Program Listing10 PRINT •WHAT IS
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25 INPUT Z30 IF Z=I THEN GOTO 8035
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70 GOTO 2080 CLS90 PRINT "THE SMALL
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60 CLS70 PRINT "THE FRACTIONAL PORT
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30 INPUT N35 IF N>INT N THEN GOTO 5
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Line 20 generates the numbers. Line
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Random Numbers:Distr~butionEver won
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110 PRINT "RANDOM NUMBERS TOTAL ";T
Page 87 and 88:
Money Matters
Page 89 and 90:
Shopper's FriendTake your computer
Page 91 and 92:
POST IS BEST BUYPOST UNIT=$0.08KELL
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ending in 95 cents. For instance, a
Page 95 and 96:
100 LET D=l-0.0l*P110 LET R=W/D120
Page 97 and 98:
100 IF H>40 THEN GOTO 140110 LET W=
Page 99 and 100:
Unit price is total price divided b
Page 101:
The computer generates a table of r
Page 105 and 106:
80 Screen FullFill your video scree
Page 107 and 108:
gram lines to draw and seem to move
Page 109 and 110:
Program Listing10 CLS100 FOR L=g TO
Page 111 and 112:
There are a number of ways to get t
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140 NEXT X200 LET X=INT(63*RND}210
Page 115 and 116:
Program Listing10 LET A$=• 1120 F
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100 FOR Y=l5 TO 25 STEP 10110 FOR X
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101 Random Bar GraphIf you don't ha
Page 123 and 124:
Appendix A:Sinclair BASIC WordsHere
Page 125:
StatementsCLEARCLSCONTCOPYDIMDIM $F
Page 129 and 130:
ooks from ARCsoft PublishersFor the
Page 132:
101 TIMEX 1000/Sinclair ZX-81Progra
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