"if condition not worked"

% V,Ma,Vmin,delta,y : matrix of 39*1
% H ,p              : matrix of 46*1               

X=10;
if Vmin(:,:) < V(:,:) < Ma(:,:) , abs(H(:,:)) < P(:,:), x < 382.99 ,abs(y(:,:))< delta(:,:)   

r=(x/382.99)

else
    r=inf 
end

this condition not work?????

Answer 1

[the cyclist]

You can only put one condition in the if statement.

I suggest you read

doc if

Answer 2

[Youssef Khmou]

hi,

The cylist just answered , anyway you need "AND" Boolean operator :

 if (Vmin(:,:) < V(:,:)) &&  (V(:,:) < Ma(:,:))
 %....................

Answer 3

[Yao Li]

You must define the logical relationships between the conditions

Answer 4

[Lisa Wu]

if expression   % your expression synax do not comply with matlab
  statements
else
  statements
end

The expression can not use "Vmin(:,:) < V(:,:) < Ma(:,:)" and "," between each expression, change the expression as :

 %%if the function of "," is OR ,change "," as "||"
   if (Vmin(:,:) < V(:,:)) &&  (V(:,:) < Ma(:,:)) ||  abs(H(:,:)) < P(:,:) ||x < 382.99 || abs(y(:,:))< delta(:,:)   
    % code
  end