How to call a function properly.

I want to take a function file and call it into my script. I have this function:

function    ff = fCW()
        F = @(f,Re) 2*log10(Re*sqrt(f))-0.8-(1/sqrt(f));  
        Re = linspace(1e4,1e7,6);                         
        ff = zeros(size(Re));
        for k = 1:length(Re)
            ff(k) = fzero( @(f) F(f,Re(k)), 0.05 );
        end
end

And I want to call it into this script file:

clear all, close all

Re1=linspace(1e+4,1e+7,6); NRe1=length(Re1);
fB = zeros(size(Re1)); fSJ = fB;
for i=1:NRe1
    fSJ(i)=0.25/(log10(5.74/Re1(i)^0.9))^2;
    fB(i)=0.3164/Re1(i)^0.25;
end

I want to plot(Re, fCW, Re1, fSJ, Re1, fB).

Is there an easy way to do this?

Answer 1

[Star Strider]

Did you run it as you posted? Did it work?

If all the relevant vector pairs have the same lengths: (Re,fCW), (Re1,fSJ), (Re1,fB), the plot call should work as you wrote it.

[Yianni]

It works thank you!

[Star Strider]

My pleasure!