Confusion surrounding the geometric definitions of $\sinh$ and $\cosh$
115090
Alternative definition of hyperbolic cosine without relying on exponential function
84389
Topologist's Sine Curve not a regular submanifold of $\mathbb{R^2}$?
91521
Ambiguity of notation: $\sin(x)^2$
112179
Why don't the results of testing $H_0 : \beta = 0$ and $H_0 : {\rm cor}(X,Y)=0$ agree?
64463
Proof that angle-preserving map is conformal
82230
Proof of equivalence of conformal and complex structures on a Riemann surface.
46358
geometric interpretation of $\vec v \cdot \operatorname{curl} \vec v = 0 $
20789
If $\Sigma \vdash \varphi$ then $\Sigma \vdash \forall x \varphi$. Why when $(\varphi \implies \forall x \varphi)$ is not true?
73593
Why is the range of inverse trigonometric functions defined in this way?
23414
Topologist's Sine Curve: A rigorous proof of why $\overline{S} = S \cup V$
128258
Why aren't the graphs of $\sin(\arcsin x)$ and $\arcsin(\sin x)$ the same?
145462
On the canonical isomorphism between $V$ and $V^{**}$
5250
Are $T\mathbb{S}^2$ and $\mathbb{S}^2 \times \mathbb{R}^2$ different?
150776
Are there parabolic and elliptical functions analogous to the circular and hyperbolic functions $\sinh$, $\cosh$, and $\tanh$?
111348
Show that $\mathrm{S}_{m} \times \mathbb{N}^{m} \rightarrow \mathbb{N}^{m}$ defines an action of $\mathrm{S}_{m}$ on $\mathbb{N}^{m}$
97213
Why does $\sin(0)$ exist?
132081
Geometrical interpretation of $(\sum_{k=1}^n k)^2=\sum_{k=1}^n k^3$