Talk:Dini derivative
Latest comment: 4 years ago by Staecker in topic Assignment Equality (triangle symbol)
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Assignment Equality (triangle symbol) edit
This is the first I've ever seen the triangle symbol. I am a professional mathematician. Maybe it is sufficiently uncommon that the article should say what it is. 147.129.213.113 (talk) 16:39, 24 February 2016 (UTC)