New posts in functions

To what function does this series converge?

calculus real-analysis sequences-and-series functions convergence-divergence

What is a nonlinear way the time on a clock can run?

functions recreational-mathematics

chain rule using tree diagram, why does it work?

calculus graph-theory functions

Find a function that describes $D$

calculus functions

Converting piecewise functions into single expressions

functions

Showing a function is bijective and finding its inverse

functions inverse

$\liminf$ of a sequence of functions

sequences-and-series functions limsup-and-liminf supremum-and-infimum

prove that $f:X\rightarrow Y$ is surjective if and only if $f(f^{-1}(C))=C$

elementary-set-theory functions proof-writing

find the limit of $\lim\limits_{x\to\infty}(1+x)^{\frac{1}{x}} $

limits functions logarithms limits-without-lhopital

How many surjective functions are there from $A=${$1,2,3,4,5$} to $B=${$1,2,3$}?

combinatorics functions

Loomis and Sternberg Problem 1.46

linear-algebra functions vector-spaces vectors problem-solving

Multivariable function that satisfy some conditions [closed]

real-analysis functions partial-derivative

Defining a piecewise function using restricted operations

functions

Can every real function be represented as two shifted even functions?

functions functional-equations

If $f(x)=x \sin (\frac{\pi}{x})$, is continuous everywhere, then find $f(0)$

limits functions

Periodicity of a Function Given the Functional Equation $f(x+a)=\frac12+\sqrt{f(x)-\big(f(x)\big)^2}$ [closed]

functions functional-equations periodic-functions

Proving: $f$ is injective $\Leftrightarrow f(X \cap Y) = f(X) \cap f(Y)$ [duplicate]

functions elementary-set-theory

Multiplicity and set of zeros.

real-analysis calculus analysis functions derivatives

Is a function of $\mathbb N$ known producing only prime numbers?

number-theory functions prime-numbers divisibility

If a function is not continuous then is it possible for bounded function in given range? [duplicate]

calculus functions derivatives continuity bounded-variation