First I assume you need cumtrapz
instead of trapz
.
For plotting you can use quiver
t = 1:5 % time in seconds
dxx = [10,8,6,5,4] % speed in x direction
w = cumtrapz(t,dxx) % distance object in x direction (numerical integration)
dyy = [9,7,6,5,3] % speed in y direction
c = cumtrapz(t,dyy) % distance of object in y direction (numerical integration)
quiver(w,c,dxx,dyy)
resulting in:
Is it what you are looking for?