Tilde on Ubuntu virtual machine with QWERTZ keyboard (MAC)

I want to do a tilde (~) on my virtual machine Ubuntu Server (14.04.4) but I couldn't do it from now. I have OSX as OS (QWERTZ keyboard). How is it possible to do it ?

I already look at some topic and this one : How can I type tilde (~) in the Ubuntu terminal with a Norwegian keyboard?

but no one of them solved my problem.

Thanks,