PYECM(1)						      General Commands Manual							  PYECM(1)

NAME

       pyecm - Number factorization with the Elliptic Curve Method

SYNOPSIS

       pyecm [OPTIONS] [FACTORS]...

DESCRIPTION

       pyecm factors numbers using the Elliptic Curve Method (ECM). If FACTORS is given, it will factor each one of these. Otherwise, it will fac-
       tor from standard input. You can type "exit" to quit pyecm at any time.

       -h, --help
	      Get help using pyecm.

       --portion=num
	      Does only part of the work for factoring, corresponding to what fraction of the total work the machine is doing. Useful for  working
	      in  parallel.  For example, if there are three machines: 1GHz, 1GHz, and 2GHz, print should be set to 0.25 for the 1GHz machines and
	      0.5 for the 2GHz machine. Implies -r and -v. -r is needed to avoid duplicating work and -v is needed to report results.

       --ov=num
	      Sets the value of the internal parameter ov, which determines the trade-off between memory and time usage. Do not touch  if  you	do
	      not  know  what  you are doing. Please read all the documentation and understand the full implications of the parameter before using
	      this switch.

       -n, --noverbose
	      Terse. On by default. Needed to cancel the -v from the --portion or --random switches. If both -n and  -v  are  specified,  the  one
	      specified last takes precedence.

       -r, --random
	      Chooses  random  values for sigma, an internal parameter in the calculation.  Implies -v; if you're doing something random, you want
	      to know what's happening.

       -v, --verbose
	      Explains what is being done with intermediate calculations and results.

EXAMPLES

       pyecm 2^3-1 1000 "(3^13+2)*5"
	      Factor 7, 1000, then 7971625.

       pyecm  Get factors from standard input.

AUTHOR

       Written by Eric Larson and Martin Kelly.

REPORTING BUGS

       Please send bugs to Eric Larson <elarson3@uoregon.edu>.

								    pyecm 2.0.1 							  PYECM(1)