# Tagged Questions

Use this tag for questions concerning history of mathematics, historical primacies of results, and evolution of terminology, symbols, and notations. Consider if History of Science and Mathematics Stack Exchange is a better place to ask your question.

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### Motivation of Vieta's transformation

The depressed cubic equation $y^3 +py + q = 0$ can be solved with Vieta's transformation (or Vieta's substitution) $y = z - \frac{p}{3 \cdot z}.$ This reduces the cubic equation to a quadratic ...
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### Is the natural exponential function defined as being its own derivative?

Is $e^x$ actually defined as being the function $f$ for which $\dfrac{d}{dx}f=f$? By which I mean not "does the identity hold", of course I know it does and that this definition is sufficient for $e$,...
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### History: Probability Theory

Of course they're both major oversimplifications, but which of (1) and (2) is closer to the truth? Lebesgue invents measure theory and then Kolmogorov notices that measure theory can be used to ...
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### What did Hilbert actually want for his second problem?

When I read about the historical background of Gödel's incompleteness theorems, it is often mentioned that he was essentially responding to Hilbert, who was trying to prove the consistency of (...
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### Where did the angle convention originate?

Where did the angle convention (in mathematics) come from? One would imagine that a clockwise direction would be more 'natural' (given sundials & the like, also a magnetic compass dial). Also, ...
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### Who invented the notation $Df$ for the derivative?

We are often taught that $f'$ came from Newton and $\frac{df}{dx}$ came from Leibniz, but who introduced $Df$? Are there other notations for this simple idea by famous mathematicians?
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### The meaning of notation with two letters inside of parentheses

What does the notation in the red box mean?
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### Mathematical texts: white background or tan [closed]

Why is it that while the vast majority of mathematical textbooks are printed on white paper, a select few are printed on that tan, sand-colored paper that sometimes shows up? I find the latter very ...
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### What exactly did Hermann Weyl mean?

"The introduction of numbers as coordinates is an act of violence." - Hermann Weyl. A lot of people like this quote, apparently. They also seem to associate it to the manifold context in the obvious ...
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### On a curve every point of which is a point of ramification

The title of my post is the same as the title of a known article written by Sierpinski where he introduced its famous triangle. In the book Handbook of the history of general topology by Lowen said ...
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### Euler's derivation of e?

Does anyone know where I can read Euler's original derivation of the infinite series used to define $e$? I mean the series as defined in the wikipedia page about $e$.
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### How do we call a pair of sets between which there is a bijection that need not have additional property?

Let $A,B$ be sets and let $f: A \to B$. Then we say that $A,B$ are isomorphic under $f$ if $f$ is a linear function that maps $A$ onto $B$ in a one-to-one manner; that $A,B$ are homeomorphic under $f$ ...
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### Original proof of Taylor's theorem

There are numerous proofs for Taylor's theorem, but What's the original proof for Taylor's theorem (by Taylor?)? In Wikipedia it says: Taylor's theorem is named after the mathematician Brook ...