is it possible to control a stepper motor using matlab?

i've bin workin on an adaptive control system of an aircraft using neural networks... so i need to control the angle of the ailerons using steppers... i've created and trained the neural network in matlab but i dunno how to make a closed loop control by interfacing it with a stepper motor... can any1 help me out with this???

Why stepper motors ? How big are these control surfaces ? If this is only a scale model, use model aircraft servos and drive a suitable PWM signal using an off-the-shelf board., like this
http://www.nodna.com/xtc/product_info.php?language=en&info=p512_Lynxmotion-SSC-32-Servo-Controller.html&XTCsid=fkv5q616c2fq9l2m42o0bfqh84