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Annotation of lucent/sys/man/1/factor, revision 1.1

1.1     ! root        1: .TH FACTOR 1 
        !             2: .CT 1 numbers
        !             3: .SH NAME
        !             4: factor, primes \- factor a number, generate large primes
        !             5: .SH SYNOPSIS
        !             6: .B factor
        !             7: [
        !             8: .I number
        !             9: ]
        !            10: .PP
        !            11: .B primes
        !            12: [
        !            13: .I start
        !            14: [
        !            15: .I finish
        !            16: ]
        !            17: ]
        !            18: .SH DESCRIPTION
        !            19: .I Factor
        !            20: prints
        !            21: .I number
        !            22: and its prime factors,
        !            23: each repeated the proper number of times.
        !            24: The number must be positive and less than
        !            25: .if n 2**56
        !            26: .if t 2\u\s756\s0\d
        !            27: (about
        !            28: .if n 7.2e16)
        !            29: .if t 7.2\(mu10\u\s716\s0\d\|).
        !            30: .PP
        !            31: If no
        !            32: .I number 
        !            33: is given,
        !            34: .I factor
        !            35: reads a stream of numbers from the standard input and factors them.
        !            36: It exits on any input not a positive integer.
        !            37: Maximum running time is proportional to
        !            38: .if n sqrt(n).
        !            39: .if t .I \(sr\o'n\(rn'\f1.
        !            40: .PP
        !            41: .ig
        !            42: .I Lfactor
        !            43: reads one number from the standard input and factors it.
        !            44: Worst-case running time is proportional to
        !            45: .if n .IR n **(1/5);
        !            46: .if t .IR n \u\s-21/5\s0\d;
        !            47: it beats
        !            48: .I factor
        !            49: for hard 12-digit problems and is workable to around
        !            50: .if n .IR n =10**30.
        !            51: .if t .IR n =10\u\s-230\s0\d.
        !            52: ..
        !            53: .PP
        !            54: .I Primes
        !            55: prints the prime numbers ranging from
        !            56: .I start
        !            57: to
        !            58: .IR finish ,
        !            59: where
        !            60: .I start
        !            61: and
        !            62: .I finish
        !            63: are positive numbers less than 
        !            64: .if n 2**56.
        !            65: .if t 2\u\s756\s0\d.
        !            66: If 
        !            67: .I finish
        !            68: is missing,
        !            69: .I primes
        !            70: prints without end;
        !            71: if
        !            72: .I start
        !            73: is missing, it reads the starting number from the
        !            74: standard input.
        !            75: .SH SOURCE
        !            76: .B /sys/src/cmd/factor.c
        !            77: .br
        !            78: .B /sys/src/cmd/primes.c

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