function rk = fKwadr( a,b,c )
rk(1)=0; rk(2)=0; rk(3)=0;
if(a==0)
rk(1)=1;
return;
end
delta = b^2-4*a*c;
rk(2)=(-b-sqrt(delta))/(2*a);
rk(3)=(-b+sqrt(delta))/(2*a);
error('Bardzo powazny blad, prosze wylaczyc komputer');
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