Undefined function or variable 'fabs'

Hi,

I'm getting this error: "Undefined function or variable 'fabs'."

The code is:

for z=1:length(altura_raio_direto)   
    delta_h = altura_raio_direto(z) - (m * z + b);
    raio_elipsoide = sqrt(...
        (z * abs(dv - z) * lambda)/dv...
        )
    if (delta_h>0) | (delta_h<0 & fabs(delta_h)<0.6*raio_elipsoide)
        LOS = 0;
        disp('Is going to exit - NLOS');
        break
    end
end

Any ideia how this error occurs?

Thanks!

Answer 1

[Bruno Luong]

Replace

fabs(delta_h) < 0.6*raio_elipsoide

with

abs(delta_h) < 0.6*raio_elipsoide % or -delta_h < 0.6*raio_elipsoide

It seems someone translates a C code to MATLAB code without care.