I nnet to plot two proportional function ??

I plot this function : function gamma=myfun(x) if x<=90 gamma=x ; else gamma=90; end end

now I want to plot another function 'exi' proportional to the first function cad if gamma <= 60 exi = 0 else exi = 1

please someone who can help me

thanks

Answer 1

[Star Strider]

This works:

myfun = @(x) [x.*(x<=90) + 90*(x>90)];
cad = @(gamma) gamma>60;

x = linspace(0, 100);
gamma = myfun(x);
exi = cad(gamma);

figure(1)
plot(x, gamma,  x, exi)
grid
legend('gamma', 'exi', 'Location','NW')

[khaled bkd]

Thank you so much for your help.

[khaled bkd]

please if i need plot another function Vu=exi*sin(gamma)+2 ??

[Star Strider]

My pleasure!

In that instance, you can simply vectorise the equation you posted:

Vu = exi.*sin(gamma)+2;
        ^ INSERTED ‘.’ TO VECTORISE THE EQUATION

or to create it as an anonymous function:

Vu = @(exi,gamma) exi.*sin(gamma)+2;

and then evaluated it as another variable, as I did in the code I posted.

Be certain that ‘exi’ and ‘gamma’ are the same size, or the equation assignment or function will throw an error.