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Text File  |  1994-03-01  |  476 b   |  12 lines
  1. 5 ONERRORGOTO900
  2. 20 MODE8:DIM:r=0:h=0:c$=CHR$(5)
  3. 30 CLS:PRINT"ãrû(rý+hý)+ãrý   r:radius";
  4. 40 s$="r":z=r:GOSUB500:r=z
  5. 45 CLS:PRINT"ãrû(rý+hý)+ãrý   h:height";
  6. 50 s$="h":z=h:GOSUB500:h=z
  7. 70 LOCATE0,1:PRINTc$;"Surface =";PI*r*(SQR(r*r+h*h)+r);:z$=INPUT$(1,@):GOTO30
  8. 500 LOCATE0,1:PRINTc$;s$;"=";z;"?";:INPUT@42;z:LOCATE0,0:IFz<0 THEN500 ELSERETURN
  9. 900 IFERR=1 THENCLS:ONERRORGOTO0
  10. 910 IFERL=500 THENRESUME500
  11. 920 LOCATE0,1:PRINTc$;"not found";:z$=INPUT$(1,@):RESUME30
  12.