PropertiesEdit. 1  The scalar triple product is invariant under a circular shift of its three operands (a, b, c): a â ( b Ã c ) = b â ( c Ã a ) = c â ( a Ã b ) {\displaystyle \mathbf {a} \cdot (\mathbf {b} \times \mathbf {c} )=\mathbf {b} \cdot (\mathbf {c} \times \mathbf {a} )=\mathbf {c} \cdot (\mathbf {a} \times \mathbf {b} )}.
2015 Pacific hurricane season. The 2015 Pacific hurricane season is the second-most active Pacific hurricane season on record with 26 named storms, only behind the 1992 season. A record-tying 16 of the storms became hurricanes, and a record 11 storms became major hurricanes throughout the season.
The Northwest Pacific basin has tropical cyclones occurring all year round regularly. There is no official definition of typhoon season for this reason. There is a distinct minimum in February and the first half of March, and the main season goes from July to November with a peak in late August/early September.