## ode45 gives time span error

### Abdelmoumen Bacetti (view profile)

on 18 Nov 2015
Hello
I want solve a system of 1621x1421 ode for 10 time value each.
I got this error.
##########################################################
*Error using odearguments (line 93) @(T,Z)FCNDT(TT(:),ZZ(:),XX(:)) returns a vector of length 10, but the length of initial conditions vector is 1. The vector returned by @(T,Z)FCNDT(TT(:),ZZ(:),XX(:)) and the initial conditions vector must have the same number of elements.
Error in ode45 (line 114) [neq, tspan, ntspan, next, t0, tfinal, tdir, y0, f0, odeArgs, odeFcn, ...
Error in depth_convert (line 41) [T, zz] = ode45(@(t,z)fcndt(tt(:),zz(:),xx(:)),tt(:),0,options);*
##########################################################
Here is the code. Please tell me what al I missing !!!!
t = rand(1621,1421,10);
z = zeros(1621,1421,2);
x = rand(1621,1421,5);
options = odeset('RelTol', 1e-4, 'AbsTol', 1e-4);
%%solve for (i,j) = (1,1)
tic
tt = t(1,1,:);
zz = z(1,1,:);
xx = x(1,1,:);
[T, zz] = ode45(@(t,z)fcndt(tt(:),zz(:),xx(:)),tt(:),0,options);
z(1,1,:) = zz;
toc
%%solve for (i,j) = (100,3)
tic
tt = t(100,3,:);
zz = z(100,3,:);
xx = x(100,3,:);
[T, zz] = ode45(@(t,z)fcndt(tt(:),zz(:),xx(:)),tt(:),0,options);
z(100,3,:) = zz;
toc
function dzdt = fcndt(t,z,x)
dzdt = zeros(1,10);
dzdt = x(1) + x(2) .* z .* (x(3) + cos(x(4).* z + x(5)));
end