Hi
leap or growth returns the price movement or tick movement over the last market refresh. An example of where leap or growth might be used could be scalping Over / Under markets. As long as there is no goal, the price moves steadily in a known direction, fluctuating up or down slightly depending on the ebb or flow of the game. A price may remain static over say 30 refreshes, and then move to the next tick. But frequently, the price returns to the previous price for a short while and then back, until the WOM starts to increase on the other side, at which point the price move is confirmed. These small up and down movements can be traded, and leap and growth are indicators which can help detect the moment to trade. Here we are looking for the price to move down, and then momentarily up again, knowing it will move down very soon.
and selections back price leap is equal to 1
Another example might be in-play horse racing, where a selections back price has moved up say from 5.00 to 15.00 over 1 refresh. Could be a good indicator for laying the selection.
and selections trigger expression b_growth is equal or greater than 10.00