— Function File: computer ()

Print or return a string of the form cpu-vendor-os that identifies the kind of computer Octave is running on. If invoked with an output argument, the value is returned instead of printed. For example,

          computer ()
          -| i586-pc-linux-gnu
          
          x = computer ()
          => x = "i586-pc-linux-gnu"
     

— Built-in Function: isieee ()

Return 1 if your computer claims to conform to the IEEE standard for floating point calculations.

— Built-in Variable: OCTAVE_VERSION

The version number of Octave, as a string.

— Built-in Function: octave_config_info (option)

Return a structure containing configuration and installation information for Octave.

if option is a string, return the configuration information for the specified option.

— Loadable Function: getrusage ()

Return a structure containing a number of statistics about the current Octave process. Not all fields are available on all systems. If it is not possible to get CPU time statistics, the CPU time slots are set to zero. Other missing data are replaced by NaN. Here is a list of all the possible fields that can be present in the structure returned by getrusage:

idrss

Unshared data size.

inblock

Number of block input operations.

isrss

Unshared stack size.

ixrss

Shared memory size.

majflt

Number of major page faults.

maxrss

Maximum data size.

minflt

Number of minor page faults.

msgrcv

Number of messages received.

msgsnd

Number of messages sent.

nivcsw

Number of involuntary context switches.

nsignals

Number of signals received.

nswap

Number of swaps.

nvcsw

Number of voluntary context switches.

oublock

Number of block output operations.

stime

A structure containing the system CPU time used. The structure has the elements sec (seconds) usec (microseconds).

utime

A structure containing the user CPU time used. The structure has the elements sec (seconds) usec (microseconds).