MATLAB: For loop and if else statement? it is not working with the different angle. could you please suggest me some solution

for loopif statement

``for i=1:size(angle)     if(angle(i) >= 1 || angle(i)<= 9)         v1(i) =v0(i)*(1-deficit1); %affected by the x away one% downstream wind for turbine 2nd         v2(i) =v1(i)*(1-deficit2); %affected by the x away one% downstream wind for turbine 2nd         v3(i) =v2(i)*(1-deficit3); %affected by the x away one% downstream wind for turbine 2nd     else     end         if(angle(i) >=10 || angle(i) <=170)             v1(i) =v0(i);             v2(i) =v0(i);             v3(i) =v0(i);         else         end          if(angle(i) >= 171 || angle(i)<= 189)         v1(i)=v0(i)*(1-deficit2); %affected by the x away one% downstream wind for turbine 2nd         v2(i)=v1(i)*(1-deficit1); %affected by the x away one% downstream wind for turbine 2nd%          v3(i)=v2(i)*(1-deficit3) %affected by the x away one% downstream wind for turbine 2nd          else          end           if(angle(i) >=190 || angle(i) <=350)             v1(i) =v0(i);             v2(i) =v0(i);             v3(i) =v0(i);           else           end              if(angle(i) >= 351 || angle(i)<= 360)         v1(i)=v0(i)*(1-deficit2); %affected by the x away one% downstream wind for turbine 2nd         v2(i)=v1(i)*(1-deficit1); %affected by the x away one% downstream wind for turbine 2nd%          v3(i)=v2(i)*(1-deficit3) %affected by the x away one% downstream wind for turbine 2nd          else              endend``

``if angle(i) < 1    ummm, what? angle is negative or between 0 and 1elseif angle(i) < 10    1 inclusive to 10 exclusive caseelseif angle(i) < 170    10 inclusive to 170 exclusive caseelseif angle(i) <= 190    170 inclusive to 190 inclusive caseelseif angle(i) < 350    190 exclusive to 350 exclusive caseelseif angle(i) <= 360    350 inclusive to 360 inclusive caseelse    ummm, what? angle is greater than 360 or is nanend``