Mostly traders’ worldwide use Pivot Point Calculation of Support(S1,S2,S3) & Resistance(R1,R2,R3) both for intraday trading as well as Delivery based trading. The general intraday interpretation of these levels is if the share price (or market) is above the Pivot Point (PP) one should take a Long ( i.e. Buy ) position with target of exiting (Selling) at R1, R2, R3 levels. Similarly if the Share price (or market ) is below the PP one should take a Short ( i.e. Sell ) position with the target of exiting ( Buying ) at S1, S2, S3 levels.
YOU have to understand one more important aspect of these levels. As the price moves from one level to other the immediate lower level becomes support & immediate upper level becomes resistance. Suppose the price is above R1 than R1 becomes immediate support & R2 becomes immediate resistance of the price movement.