Matvec Users’ Guide

Chapter 6
Time Control
Though I do not know what time and date exactly mean, I did build several conventional functions related
to time and date.
6.1 Digital Clock
6.1.1 Time
time() returns the current system calendar time, which is a double precision number. It is a builtin function.
For example,
> this.parameter("OUTPUT_PRECISION",10);
> time()
815691299
6.1.2 Localtime
localtime() returns a vector of local time with seven components: year, month, day-of-month, day-of-year,
hour, minute, and second. Such a vector will be referred to as time vector (tv). Whereas localtime(t)
converts the calendar time represented by t into the local time vector. It is a builtin function. For example,
> t = time()
8.15692e+08
> localtime()
i = 1 i = 2 i = 3 i = 4 i = 5 i = 6
1995 11 6 3101 4 9
i = 7
13
> localtime(t)
i = 1 i = 2 i = 3 i = 4 i = 5 i = 6
1995 11 6 310 14 9
i = 7
5
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