Randomly pick value in matrix and generate the function

Hi I want to builld a matlab code that can generate the plot and calculate the volume

L=[147:50:180]

R=[157:50:180]

is it possible to plot it ?

Answer 1

[David Hill]

[r,l]=meshgrid(157:173,147:180);
v=pi*r.^3+pi*r.^2.*l;%all possibilities
k=randi(numel(r));
A=[r(k),l(k),V(k)];%random element of v

[Dai Nguyen]

Thank you so much

is it possible to record all the data and plot it ?

[David Hill]

surf(r,l,v);%data is all recorded in r, l, and v