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64'er 1994 March
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64er_Magazin_94-03_1994_Markt__Technik_de_Side_A.d64
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kalender prg. 2
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.txt
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Commodore BASIC
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2022-10-26
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339b
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17 lines
10 input"datum format ttmmjjjj ";d$
20 t=val(mid$(d$,1,2))
30 m=val(mid$(d$,3,2))
40 j=val(mid$(d$,5))
50 if m<1 or m>12 then run
60 if t<1 or t>31 then run
70 gosub1000
80 print "julianisch: "jd
90 end
1000 rem kalender -> julianisch
1010 if m>2 then m=m-3:goto 1030
1020 m=m+9:j=j-1
1030 jh=int(j/100):ja=j-100*jh
1040 jd=int(146097*jh/4)+int(1461*ja/4)
1050 jd=jd+int((153*m+2)/5)+t
1060 return