public float[][] eval(float[][] dest, float a, NslFloat2 b) {
   return eval(dest, a, b.getfloat2());
 }
 public float[][] eval(float[][] dest, NslFloat2 a, float b) {
   return eval(dest, a.getfloat2(), b);
 }
 public float[][] eval(NslFloat2 a, NslFloat2 b) {
   return eval(a.getfloat2(), b.getfloat2());
 }
 public float[][] eval(NslFloat2 a, float b) {
   return eval(a.getfloat2(), b);
 }
 public float[][] eval(float[][] dest, NslFloat0 a, NslFloat2 b) {
   return eval(dest, a.getfloat(), b.getfloat2());
 }