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2008-11-26
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┴DVANCED ╟╒┼╙╙ ╔╘
╙PECIAL ╔NSTRUCTIONS
╧╥,
╘HE ╘┴╧ OF THE ┬INARY ╘REE
╘HE ╙TRUCTURE OF THE
─┴╘┴ ╙╘┴╘┼═┼╬╘╙ IN THE ╟╒┼╙╙
╔╘ GAME IS AT ONCE RIDGID AND
YET FLEXIBLE. ╘HIS GIVES IT
A POTENTIAL MUCH GREATER THAN
THE SIMPLE GAME OF 'TWENTY
QUESTIONS', WHICH IS WHAT
'╟╒┼╙╙ ╔╘' WAS BASED ON.
╘HE EASIEST MODIFICATION
IS SIMPLY A CHANGE OF
╙╒┬╩┼├╘. ╘AKE FOR EXAMPLE
THE MANY BATTLES OF THE ╒.╙.
├IVIL ╫AR. ╞OR EACH THERE IS
A ─ECISIVE ACTION IN BATTLE
OR, A ─ATE AND ╘IME WHICH HAD
A SIGNIFICANCE BEYOND THE
NORMAL SCOPE OF THE BATTLE
OR, THE PERSONAL ╓ICTORY OR
─EATH OF A ╦EY ╞IQURE OR
╞IGURES. ╠ET THESE BE THE
QUESTIONS AND ANSWERS AND YOU
HAVE A VERY SPECIFIC ╚ISTORY
─RILL. ┴ND IT TAKES NO TIME
AT ALL FOR AN ╔NSTRUCTOR TO
BUILD THE DRILL PROGRAM AS
THE PROGRAM WILL BUILD ITSELF
AS THE QUESTIONS AND ANSWERS
ARE SUPPLIED TO IT!
╔NSTEAD OF ASKING
┴NIMAL, ╓EGATABLE, OR
═INERAL, ASK WHAT THE MOST
SIGNIFICANT MEANS OF
INDENTIFING THE BATTLE
CONCERNED, WITH RESPECT TO
ITS' ╠╧├┴╘╔╧╬, ─┴╘┼ & ╘╔═┼
OR, ╔╬─╔╓╔─╒┴╠╙.
╔T'S JUST THAT SIMPLE.
╘HE SUBJECTS ARE
WHATEVER YOU CAN THINK OF.
╘HE COMPUTER CAN 'LEARN' IT,
IF YOU CAN ASK AND ANSWER
QUESTIONS.
╞OR EXAMPLE TAKE THE
FOLLOWING:
┼NGLISH ╟RAMMER-
╨ARTS OF A ╙ENTENCE,
├HEMISTRY-
┼LEMENTS OF THE ╨ERIODIC ╘ABLE
╟EOLOGY-
╨HENOMENA IN THE
╒.╙. ╬ATIONAL ╨ARKS
─RAMA-
├HARACTERS OF THE
╨LAYS AND ╙ONNETS OF
╫ILLIAM ╙HAKESPERE
┬ASIC ═ATH-
─ETERMINE A ╫HOLE ╬UMBER
FROM ITS' ╓ALUE ╙QUARED
┴S YOU CAN READILY SEE,
IF YOU CAN ASK A SERIES OF
┘┼╙ OR ╬╧ QUESTIONS AND
ARRIVE AT A SINGLE ANSWER THE
CHOICE OF SUBJECT IS
UNLIMITED.
╬OW,
FOR ANOTHER MODIFICATION.
┴S, THE PROGRAM STANDS
NOW THE DATA STATEMENTS ARE
FOR THE MOST PART MADE UP OF
QUESTIONS(Q) AND ANSWERS(A).
╫E CAN INTRODUCE A THIRD KIND
OF DATA STATEMENT WHICH CAN
BE MANUALLY INSERTED INTO THE
PROGRAM AND WHICH WOULD
REPLACE THE ANSWER DATA
STATEMENT. ╠ET US CALL THIS
THE ├╚┴╔╬(C) DATA STATEMENT.
├URRENTLY, IN THE ╨ROCEEDURE
┴╙╦'┴'╤╒┼╙╘╔╧╬ ONLY 'Q' AND
'A' DATA STATEMENTS ARE
PROCESSED. ╫ITH A SINGLE
TEST FOR A ├╚┴╔╬(C) DATA
STATEMENT WE CAN CHOOSE TO
CHAIN TO A NEW PROGRAM. ╘HE
NEW PROGRAM COULD BE A
CONTINUATION OF THE 'QUESTION
& ANSWER' PROCESS OR,
SOMETHING ENTIRELY DIFFERENT,
SUCH AS A SPECIFIC TUTORIAL
FOR REVIEW OF THE MATERIAL
BEING COVERED. ┘OU SAY WHAT
GOOD WOULD THIS DO? ╔ SAID
IN THE ORIGINAL BASIC ╟╒┼╙╙
╔╘ NOTES THAT YOU ONLY GET
OUT WHAT YOU PUT IN, AND THAT
YOU SHOULD BE ACCURATE AND
SENSIBLE. ╬OW ╔ CAN TELL YOU
THAT YOU SHOULD OCCASIONALLY
ENTER SOMETHING WHICH IS
INCORRECT OR INACCURATE!
╘HAT'S RIGHT INCORRECT
AND INACCURATE. ╚OW ELSE CAN
YOU REALLY BE SURE SOMEONE
ISN'T JUST 'PUNCHING KEYS' OR
PLAYING INSTEAD OF PAYING
ATTENTION? ╙O, A FEW WELL
PLACED LAND MINES THAT CHAIN
TO A 'GOTCHA' PROGRAM SHOULD
HELP MAINTAIN SOMEONES
ATTENTION.
╧F COURSE, WITH THE
'CHAINING' FEATURE YOU COULD
HAVE A PROGRAM/TOPIC MENU,
BUT THIS COULD BE SOMEWHAT
TEDIOUS WHEN THE
PROGRAM/TOPIC YOU WANT IS THE
LAST LINK IN THE DATA
STATEMENT STRUCTURE.
╙PEAKING OF THE ─┴╘┴
╙╘┴╘┼═┼╬╘ ╙╘╥╒├╘╒╥┼ ITS' TIME
TO QUIT SELLING AND DO SOME
DESCRIBING.
╘HE FIRST ─ATA
╙TATEMENT, WHICH MUST ALWAYS
BE LINE 1000, CONTAINS THE
NUMBER OF THE NEXT DATA
STATEMENT TO BE BUILT.
╘HE SECOND ─ATA
╙TATEMENT, MUST ALWAYS
CONTAIN THE ╞IRST AND
THEREFORE MOST ╨RIMARY
QUESTION YOU WISH TO ASK.
╙INCE IT IS A YES/NO QUESTION
IT WILL EFFECTIVELY ELIMINATE
50% OF THE REMAINING
QUESTIONS.
╘HE REMAINING ─ATA
╙TATEMENTS MAY BE ANSWER(A)
AND QUESTION(Q) DATA
STATEMENTS INTERMINGLED IN
ANY FASHION.
╘O RETURN TO THE
STRUCTURE OF THE '╤' DATA
STATEMENT IT IS AS FOLLOWS:
\QXXXX\$YYYY\#ZZZZ\
WHERE XXXX= A QUESTION
YYYY= A DATA STATEMENT
LINE NUMBER FROM 1001 TO 9999
ZZZZ= ANOTHER LINE
NUMBER
$= THE LETTER '┘' OR
'╬', BUT NOT THE SAME AS THE
VALUE OF #
#= THE LETTER '╬' OR
'┘', BUT NOT THE SAME AS THE
VALUE OF $.
╙INCE, EACH QUESTION HAS
ONLY TWO ANSWERS THE SYSTEM
UTILIZING THIS TECHNIQUE IS
CALLED ┬╔╬┴╥┘. ┴ND A SERIES
OF THIS TYPE OF QUESTION IS
CALLED A ┬╔╬┴╥┘ ╘╥┼┼.
╘HE STRUCTURE OF THE '┴'
─ATA ╙TATEMENT IS A FOLLOWS:
\AXXXX
WHERE XXXX= AN ANSWER,
LINKED TO A SPECIFIC
QUESTIONS YES OR NO RESPONSE.
╞INAL NOTES:(╔ BET YOUR
GLAD ╔ SAID THAT!)
╔ MENTIONED EARLIER THAT
THE FIRST QUESTION ELIMINATES
50% OF THE QUESTIONS IN THE
─┴╘┴ ╙╘╥╒├╘╒╥┼. ╘HAT'S THE
WAY THE PROGRAM BUILDS THE
INSTRUCTIONS. ╘OO BAD,
SORRY! ┬UT, WAIT. ╔ ALSO
SAID THAT ONCE YOU QUIT(Q)
THE PROGRAM, YOU COULD THEN
EDIT THE DATA STATEMENTS TO
FIX MISSPELLINGS AND OTHER
ERRORS. ╙O, GUESS WHAT THAT
MEANS? ┘ES THAT'S RIGHT, YOU
CAN CHANGE THAT OLD OPEN
ENDED EVER LEARNING STRUCTURE
INTO A CLOSED OR PARTIALLY
CLOSED LOOP WHICH ALLOWS:
1) QUESTIONS AND ANSWERS
WHICH WOULD NORMALLY HAVE
BEEN BYPASSED OR AT THE VERY
LEAST DUPLICATED TO BE
ACCESSED FROM ANYPLACE ELSE
IN THE STRUCTURE.
2) A FINITE, CLOSED STRUCTURE
CAN BE BUILT FOR TUTORIALS,
TO FORCE THE PARTICIPENT TO
WORK WITHIN THE CONSTRAINTS
GIVEN BY THE INSTRUCTOR.
┴S AN EXAMPLE TO THE
LAST POINT ╔ COULD HAVE MADE
THE NEGAGTIVE OR '╬'
RESPONSE, IN THE '╟╒┼╙╙ ╔╘'
GAME, FOR THE QUESTION 'IS IT
MINERAL' RETURN TO THE FIRST
QUESTION. ╘HIS WOULD FORCE
ALL ANSWERS TO BE IN THE
CATAGORIES OF ┴NIMAL,
╓EGATABLE OR, ═INERAL. ╬O
EXCEPTIONS FOR ╔DEAS OR
┼NERGY OR ANYTHING ELSE.
╞OR MORE INFORMATION ON
HOW THE PROGRAM MANIPULATES
EXISITING DATA STATEMENTS AND
BUILDS NEW STATEMENTS TO A
RUNNING PROGRAM SEE '├╧═┴╠
╠┴╬╟╒┴╟┼ ╬╧╘┼╙'