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    If B=0 Then                                                            

If C=0 Then Writeln (' X - any number ')                                     

Else Writeln (' Radicals are not present! ')                                               

    Else Begin X: =-C/B; Writeln (' X = ', X:8:3) End                            

Else                                                                       
Begin                                                                      

D: = B*B-4*A*C;                                                              

If D &lt;0 Then Writeln (' Radicals are not present! ')                                       

Else                                                                       
Begin                                                                      

X1: = (-B+SQRT (D))/2/A;                                                      

X2: = (-B-SQRT (D))/2/A;                                                      

Writeln (' X1 = ', X1:8:3, ' X2 = ', X2:8:3)                                     

End                                                                        
End                                                                        
End.                                                                       

Cycle. Sorts of Cycles.                                                         

     Multiple repetition of the same operations is named as a cycle. A body  

Cycle we will name those operations which it is necessary is multiple       
To repeat.                                                                 

     As you understand, to repeat the same operations it is possible and with the help  

The unconditional branch operator. If to write these operations in the program    

Behind another, and in the end to put one the GOTO statement to the beginning of this block.

However thus it is possible to receive only the program which works eternally (goes in cycles). It can be avoided, using together with the GOTO statement the if statement, having put transition performance in