I have this piece of code that works with integral on Matlab:
xmin = -8;
ymin = -8;
xmax = 8;
ymax = 8;
syms x y;
f2 =18-3/sqrt(x^2+ y^2)+sin(sqrt(x^2+y^2))+(sqrt(200-(x^2+y^2)+10\sin(x)+10\sin(y)))/1000;
sym_area2 = eval(int(int(f2,y,ymin,ymax),x,xmin,xmax));
double(sym_area2)
When it is trying to calculate the double(sym_area2) Matlab will just stuck and won't give out a result for a long time. Trying to figure out why.