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FM Towns: Free Software Collection 10
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FM Towns Free Software Collection 10.iso
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fb386
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tool
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math
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gurafu.bas
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BASIC Source File
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1994-05-29
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1KB
|
40 lines
10 CLS
20 PRINT "a=999のときメニュー a=-100のとき増分値・色設定"
30 PRINT "a=0のときグラフ変更 a=100のときクリア"
40 LINE (80,240)-(550,240),PSET,7
50 LINE (320,0)-(320,480) ,PSET,7
60 '
70 INPUT "増分値=",Z : IF Z=0 THEN 70
80 PRINT "Y=aX2+bX+cのグラフ"
90 INPUT "色=",D
100 IF D=0 OR D=1 OR D=2 OR D=3 OR D=4 OR D=5 OR D=6 OR D=7 THEN 110 ELSE 90
110 INPUT "a=",A
120 IF A=-100 THEN 70
130 IF A=100 THEN 10
140 IF A=0 THEN 280
150 IF A=999 THEN RUN "MENU.BAS"
160 INPUT "b=",B:INPUT "c=",C
170 FOR I=-10 TO 10 STEP Z
180 X=I : Y=A*X*X+B*X+C
190 PSET (X*10+320,240-Y*10),D
200 NEXT I
210 GOTO 110
220 '
230 '
240 CLS
250 LINE (80,240)-(550,240),PSET,7
260 LINE (320,0)-(320,480) ,PSET,7
270 '
280 PRINT "Y=aX+bのグラフ"
290 INPUT "色=",C
300 IF C=0 OR C=1 OR C=2 OR C=3 OR C=4 OR C=5 OR C=6 OR C=7 THEN 310 ELSE 290
310 INPUT "a=", A
320 IF A=0 THEN 70
330 IF A=100 THEN 240
340 IF A=-100 THEN 290
350 IF A=999 THEN RUN "MENU.BAS"
360 INPUT "b=", B
370 LINE (320,240-B*10)-(640,240-320*A-B*10),PSET,C
380 LINE (320,240-B*10)-(0,240+320*A-B*10),PSET,C
390 GOTO 310