The tilde was used similarly in Portuguese on vowels to show that the letter bearing the tilde should be pronounced nasally.

I was chatting with his director, and he was walking by himself a few yards behind. Suddenly I thought I heard my patient. I was extremely startled, and turned round — and saw it was Dustin thinking to himself, but thinking with his body, thinking enactively, thinking of the young autistic man he had just seen.

The geometric mean of 2, 4 and 1 is √ = 2

I knew he was family when I first met him.