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039. sqrt -2

VBScript

JScript

Perl

error unless use Math::Complex in effect

PHP

NaN

Python

# raises ValueError:
import math
math.sqrt(-2)

# returns complex float:
import cmath
cmath.sqrt(-2)

Ruby

raises Errno::EDOM

PowerShell

Scala

F#

C

C++

C++Builder

VC++

C#

Java

Objective-C

D

VB

VB.NET

Delphi

Ada

PL/SQL

T-SQL