ethsec ============================================== Purpose ---------------- Computes the difference between two times, as generated by the :func:date command, in hundredths of a second. Format ---------------- .. function:: hs = ethsec(t_start, t_end) :param t_start: starting date, in the order: yr, mo, day, hundredths of a second. :type t_start: 4x1 vector :param t_end: ending date, in the order: yr, mo, day, hundredths of a second. MUST be later date than *tstart*. :type t_end: 4x1 vector :return hs: elapsed time measured in hundredths of a second. :rtype hs: scalar Examples ---------------- :: // Set start date t_start = { 2009, 9, 14, 0 }; // Set ending date t_end = { 2009, 9, 14, 360 }; // Calculate elapsed hundredths of secs hs = ethsec(t_start, t_end); After the code above, *hs* is equal to: :: 360 :: // Set start date t_start = { 2009, 9, 14, 0 }; // Set ending date t_end = { 2009, 9, 15, 0 }; // Calculate elapsed hundredths of secs hs = ethsec(t_start, t_end); After the code above, *hs* is equal to: :: 8640000 which is equal to :math:24 \text{ hrs/day } \times 60 \text{ min/hr } \times 60 \text{ secs/min } \times 100 \text{ hsecs/sec}. Remarks ------- This will work correctly across leap years and centuries. The assumptions are a Gregorian calendar with leap years on the years evenly divisible by 4 and not evenly divisible by 100, unless divisible by 400. Source ------ time.src .. seealso:: Functions :func:dayinyr