Perl | chr() Function Last Updated : 21 Nov, 2021 Comments Improve Suggest changes Like Article Like Report The chr() function in Perl returns a string representing a character whose Unicode code point is an integer. Syntax: chr(Num)Parameters: Num : It is an unicode integer value whose corresponding character is returned .Returns: a string representing a character whose Unicode code point is an integer. Example 1: Perl #!/usr/bin/perl # Taking some unicode integer value as the parameter # of the chr() function and returning the corresponding # characters as output print chr(71), chr(101), chr(101), chr(107), chr(115); print "\n"; print chr(102), chr(111), chr(114); print "\n"; print chr(71), chr(101), chr(101), chr(107), chr(115); Output: Geeks for Geeks Example 2: Perl #!/usr/bin/perl # Initialising an array of some unicode integer values # and retrieving each value and printing their # corresponding characters my @Array = (71, 101, 101, 107, 115); foreach my $element (@Array) { print chr($element); } Output : Geeks Comment More infoAdvertise with us Next Article Perl | chr() Function K Kanchan_Ray Follow Improve Article Tags : Perl Perl-function Perl-String-Functions Perl-Inbuilt-Functions Similar Reads Perl | cos() Function This function is used to calculate cosine of a VALUE or $_ if VALUE is omitted. The VALUE should be expressed in radians. Syntax: cos(VALUE) Parameters: VALUE in the form of radians Returns: Function returns cosine of VALUE. Example 1: Perl #!/usr/bin/perl # Calling cos function $var = cos(5); # Pri 1 min read Perl | uc() Function uc() function in Perl returns the string passed to it after converting it into uppercase. It is similar to ucfirst() function which returns only first character in uppercase. Note: The characters which are already in UpperCase are not modified. Syntax: uc String Returns: string in uppercase. Example 1 min read Perl | atan2() Function This function is used to calculate arctangent of Y/X in the range -PI to PI. Syntax: atan2(Y, X) Parameters: Y and X which are axis values Returns: Function returns arctangent of Y/X in the range -PI to PI. Example1: Perl #!/usr/bin/perl # Assigning values to X and y $Y = 45; $X = 70; # Calling atan 1 min read Perl | ord() Function The ord() function is an inbuilt function in Perl that returns the ASCII value of the first character of a string. This function takes a character string as a parameter and returns the ASCII value of the first character of this string. Syntax: ord string Parameter: This function accepts a single par 1 min read Perl | hex Function The hex function in Perl converts the given hexadecimal number ( of base 16 ) into its equivalent decimal number ( of base 10 ). Syntax: hex number Parameters: number: hexadecimal number to be converted Returns: equivalent decimal number of the given hexadecimal number. Example 1: Perl #!/usr/bin/pe 1 min read Like