output in 3D format

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

[Walter Roberson]

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

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

qult = zeros(1,nsamples);

[milad babaei]

after calling those 3 random variabels and run this error i faced :

??? Undefined function or method 'C' for input arguments of type 'double'.

Error in ==> GRPH at 7

CS=C(1,i);

[Walter Roberson]

Your posted code assumes that C and G and fi all exist before getting to that line. Only you know how those variables need to be initialized.

[Walter Roberson]

UJJWAL had the good point that you should use plot3() instead of surf() for this situation.

But you still need to initialize C and G and fi.