Class SPxFastRT is an implementation class of SPxRatioTester providing fast and stable ratio test. Stability is achieved by allowing some infeasibility to ensure numerical stability such as the Harris procedure. Performance is acchieved by skipping the second phase is the first phase allready shows a stable enough pivot. Max phase 1 value. Compute the maximum value val that could be used for updating upd such that it would still fullfill the upper and lower bounds up and low , respectively, within delta .
Return value is the index where the minimum value is encounterd.
Internally all loops are started at start and incremented by incr . Min phase 1 value. Compute the minimum value val that could be used for updating upd such that it would still fullfill the upper and lower bounds up and low , respectively, within delta . Return value is the index where the minimum value is encounterd. Internally all loops are started at start and incremented by incr .