лабораторная работа / 2

>> p=[1 9 31 59 60]

p =

1 9 31 59 60

>> r=(roots(p))

r =

-4.0000

-3.0000

-1.0000 + 2.0000i

-1.0000 - 2.0000i

>> disp(poly(r))

1.0000 9.0000 31.0000 59.0000 60.0000

>> disp(polyval(p,3))

840

>> disp(polyder(p))

4 27 62 59

>> x=0:0.1:10;

>> y=sqrt(2*x.^ 2+1.2-cos(x))-1;

>> plot(x,y);grid

>> x=0:0.1:1;

>> y=sqrt(2*x.^ 2+1.2-cos(x))-1;

>> [TH,R]=cart2pol(x,y);