Low price, c stands for closing price}
The p-value formula use below is a variant.
Fulcrum is a very simple resistance support system, which was invented by a futures master about 10 years ago. It has been widely used in large-scale commercial crystals such as stocks, futures, national debt and indexes.
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The classic fulcrum is a 7-point system, which consists of 7 prices. At present, the widely used 13 scoring system is actually the same, except that six more prices are added for large quantities. Principle formula
The following is the principle formula:
Fulcrum: = (high+low+close)/3; (Use the highest price, lowest price and closing price of the previous day)
r 1:= 2 * pivot-low；
S 1:= 2 * pivot- high;
R2:= pivot+(r 1-s 1)；
S2:= pivot-(r 1-s 1)；
R3:= high -(2* (low fulcrum));