Google

Go to the first, previous, next, last section, table of contents.


ctrl

ctrl("switch"[,obj])
:: Sets the value of switch.
return
value of switch
switch
switch name
obj
parameter
  • This function is used to set or to get the values of switches. The switches are used to control an execution of Asir.
  • If obj is not specified, the value of switch is returned.
  • If obj is specified, the value of switch is set to obj.
  • Switches are specified by strings, namely, enclosed by two double quotes.
  • Here are of switches of Asir.
    cputime
    If `on', CPU time and GC time is displayed at every top level evaluation of Asir command; if `off', not displayed. See section cputime, tstart, tstop. (The switch is also set by command cputime(1), and reset by cputime(0).)
    nez
    Selection for EZGCD algorithm. It is set to 1 by default. Ordinary users need not change this setting.
    echo
    If `on', inputs from the standard input will be echoed onto the standard output. When executing to load a file, the contents of the file will be written onto the standard output. If `off', the inputs will not be echoed. This command will be useful when used with command output.
    bigfloat
    If `on', floating operations will be done by PARI system with arbitrary precision floating point operations. Default precision is set to 9 digits. To change the precision, use command setprec. If `off', floating operations will be done by Asir's own floating operation routines with a fixed precision operations of standard floating double.
    adj
    Sets the frequency of garbage collection. A rational number greater than or equal to 1 can be specified. The default value is 3. If a value closer to 1 is specified, larger heap is allocated and as a result, the frequency of garbage collection decreases. See section Command line options.
    verbose
    If `on' a warning messages is displayed when a function is redefined.
    hex
    If 1 is set, integers are displayed as hexadecimal numbers with prefix 0x. if -1 is set, hexadecimal numbers are desplayed with `|' inserted at every 8 hexadecimal digits.
    fortran_output
    If `on' polynomials are displayed in FORTRAN style. That is, a power is represented by `**' instead of `^'. The default value is 'off.
    ox_batch
    If 'on', the OpenXM send buffer is flushed only when the buffer is full. If 'off', the buffer is always flushed at each sending of data or command. The default value is 'off'. See section Distributed computation.
    ox_check
    If 'on' the check by mathcap is done before sending data. The default value is 'on'. See section Distributed computation.
    ox_exchange_mathcap
    If 'on' Asir forces the exchange of mathcaps at the communication startup. The default value is 'on'. See section Distributed computation.
References
section cputime, tstart, tstop, section output, section pari, section setprec, section eval, deval.


Go to the first, previous, next, last section, table of contents.