Why -0 as result of a null multiplication?

[Chricolomba]

Hello, everyone.
I have a problem that may seem very trivial, but it bothers me a lot.

Why is it that when I multiply a constant double of value 0 by a negative number I get the result -0? How can I prevent this from happening?

Thanks to everyone who will help me out, have a nice day!

[thols · Accepted solution]

Because LabVIEW follows IEEE 754. 

Wikipedia has a short description how that works: https://en.wikipedia.org/wiki/Signed_zero

You can add 0 to -0 to get 0:

https://forums.ni.com/t5/LabVIEW/quot-minus-zero-quot-in-numeric-indicator/td-p/1831859