MATLAB: Problem with execution of “nested if” commands.

conditional ifnested ifpiecewise

I need to find values of a piece wise linear function. I used nested if condition as shown in code. But for all values of t, it is executing only first "if else" loop, and giving always x1d(t)= 0.5 andx2d(t)= 0.5 as output values. Am not able to figure out the mistake. help me.
for t = 1:1:26
        if 0<t<=4
        x1d(t) = 0.5*t;
        x2d(t) = 0.5*t;
           elseif 4<t<=7
           x1d(t) = 0.5*t;
           x2d(t) = 3.33;
                 elseif 7<t<=10
                 x1d(t) = 0.5*t;
                 x2d(t) = 10/3 - 0.5*(t-40/3);
                       elseif 10<t<=26 
                       x1d(t) = 0.5*t;
                       x2d(t) = 0;
    end
end

Best Answer

This if 0<t<=4 doesn't work properly in MATLAB, but this does if 0<t && t<=4 , you have to separate the conditions because MATLAB doesn't evaluate two conditions at the same time unless you use & or | operators.
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