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Kevin Ryde > Math-NumSeq > Math::NumSeq::MaxDigitCount

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# CPAN RT

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Module Version: 72

# NAME

Math::NumSeq::MaxDigitCount -- maximum count of a given digit in any radix

# SYNOPSIS

use Math::NumSeq::MaxDigitCount;
my \$seq = Math::NumSeq::MaxDigitCount->new (values_type => 'count');
my (\$i, \$value) = \$seq->next;

# DESCRIPTION

This is the maximum count of a given digit which occurs when i is written in any radix. The default digit is 0.

0, 1, 1, 2, 1, 1, 1, 3, 2, 2, 1, 2, 1, 1, 1, 4, 3, 3, 2, ...
starting i=1

For example i=15 is 1 because 15 = ternary "120" which has 1 zero, and no other base has more than that. i is "10" in base i itself so there's always at least 1 zero, after i=1.

2, 2, 3, 2, 2, 2, 7, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, ...

If the maximum count occurs in more than one radix the value is the smallest where it occurs. i=1 has no zeros in any radix and the return is 2 for binary since the count 0 occurs in that radix.

## Digit

Option digit => \$n selects another digit to count, for example

# digit => 1
1, 1, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 3, 3, 4, 2, 2, 2, 3, ...

For example at i=7 the count is 3 since 7 in binary is "111" with 3 digit 1s.

# FUNCTIONS

See "FUNCTIONS" in Math::NumSeq for behaviour common to all sequence classes.

\$seq = Math::NumSeq::MaxDigitCount->new ()
\$seq = Math::NumSeq::MaxDigitCount->new (digit => \$d, values_type => \$str)

Create and return a new sequence object.

## Random Access

\$value = \$seq->ith(\$i)

Return the count or radix for the selected digit when \$i is written in any radix.

\$bool = \$seq->pred(\$value)

Return true if \$value occurs in the sequence. This simply means \$value an integer, but excluding 0 when seeking digit=1, or excluding 1 when seeking the radix.

http://user42.tuxfamily.org/math-numseq/index.html