Hi, I am trying to read a text file and perform operations on it, but having a hard time with the integral

%importing and reading text file
fid = fopen('A9P3data-S19.txt');
mat = fscanf(fid, '%f ', [3,inf]);

%assigning values for variables from file obtained
w = mat(1,1);
day = mat(2,1:13);
h = mat(3,1:13);
v = mat(1,2:14);

%calculating instantanious volumetric flow rate
Q = 0.85*v.*w.*h;
%calculating total amount of water flowed in 1 year period
V = 86400*integral(Q,1,366);

-----------------------------------------------------------------Data File---------------------------------------------------------------

4
1	3.0	5.4
32	4.2	7.3
60	4.8	8.6
91	6.5	9.7
121	8.2	12.5
152	8.8	13.2
182	9.8	13.5
213	8.1	11.9
244	6.2	9.5
274	5.4	9.1
305	4.5	7.5
335	3.1	5.6
366	2.9	4.3

I know i need a function handle for the integral, but i dont know which one and where to place it.