MacTutor
30th April
On this day in 1807, Gauss wrote to Sophie Germain for the first time since being aware she was a woman, (She had formally written using the name Monsieur LeBlanc). In a letter with much praise, he writes:-
The scientific notes with which your letters are so richly filled have given me a thousand pleasures. I have studied them with attention and I admire the ease with which you penetrate all branches of arithmetic, and the wisdom with which you generalise and perfect.On this day in 2016 Google released a Shannon doodle and in 2018 they released a Gauss doodle.