Radian is the SI unit to measure the angle subtended by an arc of a circle. It is the measurement of the angle subtended by an arc of a circle whose length is equal to the radius of the circle. θ (in radians) = \(  \dfrac { \mathrm{length \ \ of \ \ arc} } {...

This is the Fast Shutdown mode. The server disallows new connections and sends all existing server processes SIGTERM, which will cause them to abort their current transactions and exit promptly. It then waits for all server processes to exit and finally shuts down. If...