Bronze Edition Guide - True BASIC

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D. Explanations of Error Messages 199 Unknown variable. You are using OPTION TYPO to check for spelling mistakes, and it has found a variable name that you haven’t declared anywhere. If True BASIC has found a typing mistake, just correct the spelling. Otherwise, add a LOCAL statement that lists this variable, or include the variable in its correct DECLARE PUBLIC or SHARE statement. VAL string isn’t a proper number. (4001) You’ve called the Val function, but the string you gave doesn’t properly represent a number. What? (Please type HELP or select the menu item: HELP for True BASIC) You’ve typed a command that True BASIC doesn’t understand. If you want further help from the computer, just type HELP in the command window or use the Help menu for more instructions. When the HELP window appears, choose COMMANDS from the topics list. (Also, see Appendix F for more about the HELP facility.) Window minimum = maximum. (-11001) You’ve executed a SET WINDOW statement that sets the vertical or horizontal window maximum equal to the minimum. True BASIC doesn’t allow this, as it wouldn’t let you see anything in that window. Remember that the order of edges for the SET WINDOW command is left, right, bottom, top. Wrong number of arguments. A function, subprogram, or picture was called with the wrong number of arguments. Wrong number of dimensions. You’re trying to use an array, but have given the wrong number of dimensions. Check this use against the array’s DIM statement, and make sure that both have the same number of subscripts. If you’re passing an array to a routine, check the routine’s parameters. Remember that a two-dimensional array must be indicated as A(,) in the parameter list, a three-dimensional array by A(,,) and so forth. Wrong type. You’re trying to use a string where a number is needed, or a number where a string is needed. Check to make sure you’re not trying to assign a number to a string variable, or vice versa. Remember, too, that string concatenation is written using an ampersand (&) in True BASIC, and not a plus sign (+).
200 BRONZE Edition Guide You have two routines called name in routine. In the routine named routine, you’ve defined two different routines named name. Since different things must have different names, you must change the name of one of them. Be sure to go through all calls to that routine, and change those names too. True BASIC says “in MAIN program” if the error occurred in your main program (before the END statement). Zero to negative power. (3003) You are trying to compute 0^n, where n < 0. This is mathematically undefined, and so True BASIC gives an error.
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BRONZE Edition Reference Manual Joh
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4 BRONZE Edition Reference Manual 7
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6 BRONZE Edition Reference Manual P
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9 CHAPTER An Introduction to Progra
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11 CHAPTER Why True BASIC? 2 True B
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13 Installing True BASIC and Using
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Using the True BASIC 6.0 Editor Eve
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iii Short cuts The default setting
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UNDO and REDO UNDO can be applied t
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v TOOLBAR In this version of the ed
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that have a habit of making mistake
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ix EXIT THE EDITOR If you wish to e
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xi RIGHT CLICK /SHORTCUT MENU By cl
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xiii 24 (orange) for Numeric variab
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Note: if you are running a program,
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xv • UNSAVE - is a drastic measur
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a list. You may select any of the l
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• CONFIRM QUIT - is a toggle acti
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xxi • MANUALS - will display a se
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xxiii examples that can be copied d
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24 BRONZE Edition Guide It doesn’
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26 BRONZE Edition Guide The PRINT S
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28 BRONZE Edition Guide Making Simp
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30 BRONZE Edition Guide When the pr
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33 CHAPTER Constants, Variables and
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6. Constants, Variables, and Expres
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41 CHAPTER More on Input and Output
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7. More on Input and Output 43 Can
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7. More on Input and Output 45 Here
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47 CHAPTER Loop Structures 8 So far
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8. Loop Structures 49 .5 .70710678
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8. Loop Structures 51 This program
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8. Loop Structures 53 Notice that y
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8. Loop Structures 55 Change the in
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57 CHAPTER Decision Structures 9 So
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9. Decision Structures 59 Even thou
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9. Decision Structures 61 The RANDO
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9. Decision Structures 63 Other Dec
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65 CHAPTER Formatting and Printing
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10. Formatting and Printing Your Pr
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10. Formatting and Printing Your Pr
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71 CHAPTER Editing Hints and Shortc
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11. Editing Hints and Shortcuts 73
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11. Editing Hints and Shortcuts 75
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77 CHAPTER Using and Storing Data 1
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12. Using and Storing Data 79 times
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12. Using and Storing Data 81 Reusi
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12. Using and Storing Data 83 compu
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12. Using and Storing Data 85 —
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12. Using and Storing Data 87 IF re
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12. Using and Storing Data 89 The L
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12. Using and Storing Data 91 More
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93 CHAPTER Arrays and Matrices 13 P
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13. Arrays and Matrices 95 item$ ha
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13. Arrays and Matrices 97 The DIM
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13. Arrays and Matrices 99 The MAT
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13. Arrays and Matrices 101 Advance
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103 CHAPTER Functions and Subroutin
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14. Functions and Subroutines 105 C
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14. Functions and Subroutines 107 I
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14. Functions and Subroutines 109 I
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14. Functions and Subroutines 111 E
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113 CHAPTER Libraries 15 Subroutine
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15. Libraries 115 DECLARE DEF state
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117 CHAPTER Graphics 16 Using True
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16. Graphics 119 Figure 16.2 - Hori
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16. Graphics 121 You can draw circl
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16. Graphics 123 The table shows th
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16. Graphics 125 LET x = 0 FOR move
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16. Graphics 127 The SHEAR transfor
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16. Graphics 129 LIBRARY “GraphLi
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16. Graphics 131 Programming for Wi
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16. Graphics 133 as push buttons, e
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135 CHAPTER Sound and Music 17 You
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17. Sound and Music 137 F4 F4 G4 E4
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139 CHAPTER Correcting Errors and D
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18. Correcting Errors and Debugging
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18. Correcting Errors and Debugging
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145 ASCII Character Set APPENDIX A
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147 True BASIC Statements APPENDIX
Page 166 and 167: B. True BASIC Statements 149 The fo
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Page 170 and 171: B. True BASIC Statements 153 CALL S
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Page 174 and 175: B. True BASIC Statements 157 FOR Lo
Page 176 and 177: B. True BASIC Statements 159 all va
Page 178 and 179: B. True BASIC Statements 161 PLAY S
Page 180 and 181: B. True BASIC Statements 163 PROGRA
Page 182 and 183: B. True BASIC Statements 165 SET CO
Page 184 and 185: 167 Built-in Functions APPENDIX C T
Page 186 and 187: C. Built-in Functions 169 String Tr
Page 188 and 189: C. Built-in Functions 171 ANS (defa
Page 190 and 191: C. Built-in Functions 173 string fo
Page 192 and 193: C. Built-in Functions 175 IP Functi
Page 194 and 195: C. Built-in Functions 177 MOD Funct
Page 196 and 197: C. Built-in Functions 179 POSR Func
Page 198 and 199: C. Built-in Functions 181 SIZE Func
Page 200 and 201: C. Built-in Functions 183 UCASE$ Fu
Page 202 and 203: 185 Explanations of Error Messages
Page 204 and 205: D. Explanations of Error Messages 1
Page 218 and 219: 211 Making Your Own DO Programs APP
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Page 222 and 223: 215 APPENDIX PRINT USING Statement
Page 224 and 225: H. PRINT USING Statement 217 Notice
Page 226 and 227: H. PRINT USING Statement 219 Floati
Page 228 and 229: H. PRINT USING Statement 221 s$ PRI
Page 230 and 231: 223 TRUE BASIC File Types APPENDIX
Page 232 and 233: I. True BASIC File Types 225 Likewi
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Page 240 and 241: I. True BASIC File Types 233 READ #
Page 242 and 243: I. True BASIC File Types 235 actual
Page 244 and 245: I. True BASIC File Types 237 As an
Page 246 and 247: 239 BASIC to True BASIC Converter A
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Page 256 and 257: 250 BRONZE Edition Guide CALL state
Page 258 and 259: 252 BRONZE Edition Guide user-defin
Page 260 and 261: 254 BRONZE Edition Guide Output Win
Page 262: 256 BRONZE Edition Guide selecting,
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Bronze Edition Guide - True BASIC

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