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- 5 ONERRORGOTO900
- 10 MODE8:DIM:ERASEa,a$:DIMa(4),a$(4):c$=CHR$(5)
- 15 RESTORE800:FORi=0 TO4:READa$(i):NEXT
- 20 CLS:PRINT"Select number of face";TAB(0);"1:4f 2:6f 3:8f 4:12f 5:20f";
- 30 f=ASC(INPUT$(1,@))-48:IFf<1 OR f>5 THEN30
- 40 CLS:PRINT"Select input data";TAB(0);"1:a 2:r 3:R 4:S 5:V";
- 50 k=ASC(INPUT$(1,@))-48:IFk<1 OR k>5 THEN50
- 60 RESTORE(800+f*10):READw$,n$,e$,t$,b,c,x,y:f=f-1:k=k-1
- 90 CLS:PRINTw$;"hedron)";TAB(18);a$(k);
- 100 LOCATE0,1:PRINTc$;LEFT$(a$(k),1);"=";a(k);"?";:INPUT@42;a(k):LOCATE0,0
- 105 CLS:PRINTw$;"hedron)";TAB(18);n$;",";e$;"e,";t$;"v";:PRINT
- 110 ONk+1 GOTO200,111,112,113,114
- 111 a(0)=a(1)/x:GOTO200
- 112 a(0)=a(2)/y:GOTO200
- 113 a(0)=SQR(ABS(a(3)/b):GOTO200
- 114 a(0)=CUR(a(4)/c)
- 115 IFa(k)<0 THEN100
- 200 a(1)=a(0)*x:a(2)=a(0)*y:a(3)=b*a(0)^2:a(4)=c*a(0)^3:m=SGN(-k)+1:n=SGN(4-k)+3
- 300 FORi=m TOn:IFi=k THEN380
- 310 PRINTc$;a$(i);" =";a(i);
- 320 w=ASC(INPUT$(1,@)):IFw=13 THEN380
- 330 IFw=30 ANDi>m THENIFi=k+1 THENi=i-3:GOTO380 ELSEi=i-2:GOTO380
- 340 IFw=31 ANDi<n THEN380
- 370 GOTO320
- 380 NEXT:GOTO20
- 800 DATAa:edge,r:inside,R:outside,S:surface,V:volume
- 810 DATA4(tetra,3,6,4,1.732050807568,.1178511302,.2041241452319,.6123724357
- 820 DATA6(hexa,4,12,8,6,1,.5,.866025403784
- 830 DATA8(octa,3,12,6,3.464101615136,.471404520791,.4082482904638,.7071067811865
- 840 DATA12(dodeca,5,30,20,20.64572880706,7.663118960622,1.113516364411,1.401258538443
- 850 DATA20(icosa,3,30,12,8.66025403784,2.181694990624,.755761314076,.9510565162947
- 900 IFERR=1 THENCLS:ONERRORGOTO0
- 910 IFERL=100 THENRESUME100
- 920 LOCATE0,1:PRINTc$;"not found";:z$=INPUT$(1,@):RESUME20
-