New posts in functions

Computing the total variation of a function $f:[0,1] \to \mathbb{R}$ using uniform partitions

real-analysis analysis functions bounded-variation

Expressing bitwise operations in terms of other functions

Notational differences b/w Iterated functions & exponentiation.

functions derivatives notation terminology iterated-function-system

What is the periodicity of the function $\sin(ax) \cos(bx)$ where $a$ and $b$ are rationals?

trigonometry functions periodic-functions

If a function can only be defined implicitly does it have to be multivalued?

algebra-precalculus functions definition multivalued-functions

Number of discrete functions such that $f(f(f(x)))=x$

sequences-and-series combinatorics functions recurrence-relations

Continuous function proof by definition

real-analysis functions continuity

Proof that the Dirichlet function is discontinuous

calculus analysis functions continuity

Does the function $f(x)=\frac{1}{x}$ have an inverse function?

analysis functions inverse-function singularity

How to plot the graph using MATLAB?

ordinary-differential-equations functions dynamical-systems graphing-functions matlab

How to find $f(x)$, if $f(x)+f(1/x)=f(x)f(1/x)$? [duplicate]

analysis functions polynomials functional-equations

Are there any functions that can't be expressed in terms of binary operations?

functions set-theory

Linear independence of functions: $x_1(t) = 3$, $x_2(t)=3\sin^2t$, $x_3(t)=4\cos^2t$

linear-algebra functions vector-spaces

Conclude $L_{[a]}$ is not injective if it is not surjective and use this to show the existence of $[b] \in \mathbb{Z_{n}}$ s.t. $[a][b] = [0]$

elementary-number-theory functions solution-verification modular-arithmetic

Is$\frac{\sqrt{a}}{\sqrt{b}}$ the same as $\sqrt{\frac{a}{b}}$?

algebra-precalculus functions arithmetic education radicals

Regarding the notation $f: a \mapsto b$

functions notation

What's the intuition behind the identities $\cos(z)= \cosh(iz)$ and $\sin(z)=-i\sinh(iz)$?

complex-analysis functions trigonometry intuition visualization

I don't understand a function of phrase and a relative pronoun

relative-pronouns functions

What does orthogonality mean in function space?

linear-algebra functions inner-products orthogonal-polynomials

Can we have a one-one function from [0,1] to the set of irrational numbers?

functions elementary-set-theory real-numbers