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18 lines
440 B
QBasic
18 lines
440 B
QBasic
1 ZEROLINE=10
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2 AMP=20
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3 GOTO 1000
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100 LABEL SINCQ:REM gets Sinc(Q)
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110 Q=IF I==0 THEN 1.0 ELSE SIN(I)/I
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120 RETURN
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200 LABEL PLOTLINE:REM Converts 0-1 value into screen line. input is Q, results are stored to SQ
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210 SQ=""
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220 FOR X=1 TO ZEROLINE+AMP
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230 SQ=SQ+(IF X==ROUND(ZEROLINE+Q*AMP) THEN "@" ELSE IF X==10 THEN "|" ELSE CHR(250))
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240 NEXT
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250 RETURN
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1000 FOR I=-40 TO 40
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1010 GOSUB SINCQ
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1020 GOSUB PLOTLINE
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1030 PRINT(SQ)
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1040 NEXT
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