History of Science and Mathematics Beta
Profile Activity
Meta user
Network profile
1,367
reputation
10
18

Michael Bächtold

Apparently, this user prefers to keep an air of mystery about them.

10
answers
10
questions
~10k
people reached
  • Switzerland
  • hslu.ch/en/…
  • Member for 5 years
  • 179 profile views
  • Last seen 8 hours ago

Communities (30)

Top Meta Posts
1
0

Top network posts

Top tags (13)

Score 38
Posts 17
Posts % 85
Score 23
Posts 10
Score 21
Posts 12
Score 9
Posts 4
Score 7
Posts 2
Score 7
Posts 2
View all tags →

Top posts (20)

All Questions Answers
Votes Newest
19 Who first considered the $f$ in $f(x)$ as an object in itself, and who decided to call it a function? Jun 3 '17
17 Is the prime notation for derivatives $f'$ due to Euler? Jun 19 '17
11 When and why did $\frac{dy}{dx}$ become $\frac{d}{dx}y$? Oct 14 '18
9 When was the function arrow notation $x \mapsto y$ first used? Mar 9 '17
8 Historical occurrences of mathematicians substituting terms for $x$ in the denominator of $\mathrm{d}y/\mathrm{d}x$? Oct 20 '17
8 Who introduced the notation $y|_{x=a}$? Nov 3 '16
7 Who invented the Leibnitz notation $\frac{d^2y}{dx^2}$ for the *second* derivative? Oct 26 '18
7 $\frac{dy}{dx}$ versus $\frac{{\mathrm d}y}{{\mathrm d}x}$ Feb 28 '18
6 Who introduced random variables into probability? Feb 2 '19
6 Who first considered the $f$ in $f(x)$ as an object in itself, and who decided to call it a function? Jun 5 '17
View all questions and answers →

Badges (28)

Gold

—

Silver

10

Rarest

Bronze

18

Rarest

View all badges →