New posts in functions

How do you define functions for non-mathematicians?

algebra-precalculus education definition functions

Adverbial phrase

grammar phrases syntactic-analysis adverbials functions

On sort-of-linear functions: does $f(x+y) = f(x) + f(y)$ imply $f(\alpha x) = \alpha f(x)$?

functions functional-equations

Commutativity of iterated limits

real-analysis limits functions

Prove that there is a bijection between the set of all subsets of $X$, $P(X)$, and the set of functions from $X$ to $\{0,1\}$.

elementary-set-theory functions solution-verification

Show $S = f^{-1}(f(S))$ for all subsets $S$ iff $f$ is injective

functions elementary-set-theory

Infinitely differentiable function with given zero set?

real-analysis functions

Looking for a function that approximates a parabola

functions quadratics conic-sections approximation gaussian

Octave: "sin(x)*cos(x); " brings back error

functions almost-periodic-functions

How do you solve 5th degree polynomials?

functions polynomials roots radicals

Is it true that this function $f(n)=n^{13}$?

functions contest-math functional-equations

Does this pattern have anything to do with derivatives?

functions derivatives

How is $e^x$ read aloud?

functions exponentiation pronunciation

"Well defined" function - What does it mean?

linear-algebra functions transformation

Why does "convex function" mean "concave *up*"?

soft-question real-analysis terminology functions

A ping-pong ball lying inside a wine glass

calculus functions

Is there a name for the function $\max(x, 0)$?

functions terminology

How can I prove that $\lim_{x\to \infty}{\sin(2x)}$ does not exits?

calculus limits analysis functions epsilon-delta

Can a function be increasing *at a point*?

functions soft-question definition

Surjectivity of Composition of Surjective Functions

functions elementary-set-theory