sqrt - perldoc.perl.org Home > Language reference > Functions > sqrt Perl 5 version 22.4 documentation sqrt Perl functions A-Z | Perl functions by category | The 'perlfunc' manpage sqrt EXPR sqrt Return the positive square root of EXPR. If EXPR is omitted, uses $_ . Works only for non-negative operands unless you've loaded the Math::Complex module. use Math::Complex; print sqrt(-4); # prints 2i
Perl 5 version 22.4 documentation sqrt Perl functions A-Z | Perl functions by category | The 'perlfunc' manpage sqrt EXPR sqrt Return the positive square root of EXPR. If EXPR is omitted, uses $_ . Works only for non-negative operands unless you've loaded the Math::Complex module. use Math::Complex; print sqrt(-4); # prints 2i