| Isoperimetric problems on time scales with nabla derivatives. |
| The King's son helped nabla to a seat behind him on the horse's back and bidding adieu to the widow, rode off. |
| Poor nabla, in amazement, sat looking at the big heap of silk and the golden wheel. |
| Then she brought in a golden loom and told nabla she must have all that thread woven in twenty-four hours. |
| He heard the mother beating and scolding, and nabla crying and pleading within. |
| Scarabus with hawk-headed gryphon, having before in the urus and the nabla or guitar, hieroglyphic of good. |
