MATLAB: How to use two different equations for different ranges of values within an array

arrayrange of values

I have a range of values, x = 0:0.1:5 as my inputs.
I want to use
Eq.1 when 0 < x <= 1,
and
Eq.2 for 1 < x < 5.
and then plot(x,y)
if (x >= 0) && (x <= 1)
        y = x^(0.5)
    elseif (x > 1)
        y = x^(-0.5)
    end

Best Answer

The following should work for your intended restrictions.
 % initialize x
 x = 0:0.1:5;
 % initialize y with all zeros
 y = zeros(1,numel(x));
 for i = 1:numel(x)
    if (x(i) >= 0) && (x(i) <= 1)
        y(i) = x(i)^0.5;
    else
        y(i) = x(i)^(-0.5);
    end
 end
 plot(x,y)
Check out this regarding for loops: MATLAB Doc 'for loop'
Also this, regarding if statements: MTALAB Doc 'if, elsif, else'
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