Because I want to use this strategy
Are you serious? Or I misunderstand you?
martiangle betting system is used for betting, how to use in trading? I never heard it before.
The simplest of martiangle is designed for a game in which the gambler wins his stake if a coin comes up heads and loses it if the coin comes up tails. The strategy had the gambler double his bet after every loss, so that the first win would recover all previous losses plus win a profit equal to the original stake. The martingale strategy has been applied to roulette as well, as the probability of hitting either red or black is close to 50%.
Do you mean this? It's for gamble, not trading, but indeed trading is a kind of gamble.