eger IY should</span>
<span class="c">!!    be initialized to an arbitrary integer prior to the first call to</span>
<span class="c">!!    mat_urand(3f). The calling program should not alter the value of IY</span>
<span class="c">!!    between subsequent calls to mat_urand(3f). Values of mat_urand(3f) will</span>
<span class="c">!!    be returned in the interval (0,1).</span>
<span class="c">!!</span>
<span class="c">!!##OPTIONS</span>
<span class="c">!!    IY seed for generating a sequence.</span>
<span cl