New posts in functions

"Converse" of Taylor's theorem

calculus real-analysis functions derivatives

Why are the domain and image of $F(x) = \sqrt{1-\cosh(x)}$ only $\{0\}$? [closed]

algebra-precalculus functions graphing-functions hyperbolic-functions

Composition of functions injective implies one of them is injective?

Covering $\mathbb R^2$ with function graphs

real-analysis geometry functions set-theory cardinals

Prove that $f(1999)=1999$

elementary-number-theory functions contest-math

Is $x\log\bigl(\cos(x)\bigr)$ an even or odd function?

real-analysis functions even-and-odd-functions

Function theory: codomain and image, difference between them

functions terminology

Difference between a function and a graph of a function?

elementary-set-theory functions

Difference between functional and function.

calculus functions terminology

"Least trivial" function preserving rationality

functions soft-question rational-numbers

Why is an image called an "image"?

functions elementary-set-theory soft-question terminology math-history

A real function which is additive but not homogenous

linear-algebra functions linear-transformations functional-equations

Is log the only choice for measuring information?

functions logarithms information-theory

Are all functions that have an inverse bijective functions?

Exponential Function as an Infinite Product

calculus real-analysis limits functions exponential-function

Is there other function $f$ such that $f(x, y) + f(y, z) \geq 2f(x,z)$? What is it name?

functions definition axioms

Counting surjective functions

Fixed point in a continuous function

functions limits continuity

What is the opposite category of $Set$?

functions category-theory

The sine inequality $\frac2\pi x \le \sin x \le x$ for $0<x<\frac\pi2$ [duplicate]

functions trigonometry inequality