MATLAB: Output in 3D format

Question

hi, according to this code i would like to plot my output(qult)versus these values CS,F .please help me/

code :

   B=1000;L=2000;Df=200;Sc=1.1;Sq=1.1;Sgama=.8;dgama=1;dc=1.08;
  nsamples=10000;
     for i=1:nsamples
         CS=C(1,i);
         WS=G(1,i); 
         F=fi(1,i);
         Nq=tan((pi/4)+(pi*F/360))*tan((pi/4)+(pi*F/360))*2.718^(pi*tan(F*pi/180));
         Nc=(Nq-1)*cot(F*pi/180);
         Ngama=2*(Nq+1)*tan(F*pi/180);
         dq=1+(0.4)*(tan(F*pi/180))*(1-sin(F*pi/180))^2;
         qult(i)=(CS*Nc*Sc*dc)+(384*Nq*Sq*dq)+(980*Ngama*Sgama*dgama);
     end
 qult is a function of those 3variables CS,WS,F.

Answer 1

surf( C(1,1:nsamples), fi(1,1:nsamples), qult );

Note: for efficiency, before your loop, you should do

qult = zeros(1,nsamples);