public float[] eval(float[] dest, NslFloat1 a, NslFloat1 b) {
   return eval(dest, a.getfloat1(), b.getfloat1());
 }
 public float[] eval(float a, NslFloat1 b) {
   return eval(a, b.getfloat1());
 }
 public float[] eval(NslFloat1 a, NslFloat1 b) {
   return eval(a.getfloat1(), b.getfloat1());
 }
 public float[] eval(NslFloat1 a, float b) {
   return eval(a.getfloat1(), b);
 }