sqrt

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

Links:

http://perldoc.perl.org/5.24.0/functions/sqrt.html

doc_perl

2016-12-06 03:27:16

Comments

Popular Articles

sqrt (PHP 4, PHP 5, PHP 7) Square root float sqrt ( float $arg ) Returns the square

sqrt sqrt(z) Class Public methods Returns the non-negative square root of Complex. sqrt(-1) #=> 0+1.0i sqrt(Complex(-1,0)) #=&g

sqrt! sqrt!(z) Class Public methods Alias for: sqrt

sqrt sqrt(n) Instance Public methods Returns the square root of the value. Result has at least n significant digits.

sqrt sqrt(x,prec) Instance Public methods Computes the square root of x to the specified number of digits of precision. BigDecimal.new('2').s