lass="col-md-8">an image offers array storage (e.g. p[-1,-1].r) bounded by its width and height.  An image sequence represents multiple arrays (e.g. u.p[0,0].r, v.p[0,0].r).  Storage is limited to Quantum values, e.g. [0..65535] for Q16 builds and floating point for HDRI-enabled builds.</dd>
  <dt class="col-md-4"> math functions: </dt>
     <dd class="col-md-8"> abs(), acos(), acosh(), airy(), alt(), asin(), asinh(), atan(), atanh(), atan2(), ceil(), clamp(), cos(), cosh(), debug(), drc(), erf(), exp(), fl