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

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

[Will Fritz]

Is your Eq1: y = x^(0.5) and Eq2: y = x^(-0.5)? Also, what are the specific bounds? The code snippet at the end has different bounds than the two initial bounds you stated

[Bixius]

yes, Eq1 is y = x^(0.5) and Eq.2 is y = x^(-0.5). and I apologise

I meant to write

if (x >= 0) && (x <= 1)
        y = x^(0.5)
    elseif (x > 1)
        y = x^(-0.5)
    end

Answer 1

[Will Fritz]

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'