Kevin Ryde > Math-NumSeq-66 > Math::NumSeq::DigitCountLow

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# CPAN RT

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Module Version: 66   Source   Latest Release: Math-NumSeq-69

# NAME

Math::NumSeq::DigitCountLow -- count of given low digits

# SYNOPSIS

``` use Math::NumSeq::DigitCountLow;
my \$seq = Math::NumSeq::DigitCountLow->new (radix => 10,
digit => 9);
my (\$i, \$value) = \$seq->next;```

# DESCRIPTION

The count of how many of a given digit are at the low end of `\$i` when written out in a given radix. The default is to count how many low 9s in decimal. For example i=9599 has value 2 as there's two consecutive 9s at the low end.

# FUNCTIONS

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

`\$seq = Math::NumSeq::DigitCountLow->new (radix => \$r, digit => \$d)`

Create and return a new sequence object.

`digit` can be -1 to mean digit radix-1, the highest digit in the radix.

## Random Access

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

Return how many of the given `digit` is in `\$i` written in `radix`.

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

Return true if `\$value` might occur as a digit count, which means simply `\$value>=0`.

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