PERL for Biologists
List of functions
List of PERL functions used in this course.
- length - Determination of the length of a string.
Use: $no_of_chars = length( $source_string );
$no_of_chars receives the
number of characters in the string $source_string.
- sqrt - Calculation of square root.
Use: $root = sqrt( $value );
$root receives the calculated square root of $value. This is in most
cases a real (fractional) number.
- substr - Substring.
Use: $part = substr( $source_string, $position, $length );
$part is a fragment
from $source_string, starting at $position and continuing for $length characters.
© 2001-2007, by