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So the opening range of this transaction day is, r2 - r1 in Figure 1(a). The pivot range (not present in figures) in pivot point system is calculated by the high(h), low(l) and close price(c) of the previous one transaction day, namely Jan 4th. From then on, the program starts to calculate time. Once the price stays above Aup level for more than 10 minutes, it will prompt to open long positions.