New posts in functions

What does partial differentiation give for a second degree equation which doesn't represent a conic?

algebra-precalculus functions quadratics conic-sections

What does it mean to extend a function?

real-analysis functions

Is there a systematic way of solving cubic equations?

functions

Can a function be applied to itself?

functions elementary-set-theory

Right Inverse for Surjective Function

functions elementary-set-theory inverse

$f: \mathbb{R} \to \mathbb{R}$ that takes each value in $\mathbb{R}$ twice

real-analysis functions

$\lim_{n\to\infty} n^2 \int_{0}^{1} \frac{x\sin{x}}{1+(nx)^3} \, \mathrm{d}x$

limits functions lebesgue-integral lebesgue-measure pointwise-convergence

What is the difference between a function and a distribution?

analysis functions fourier-analysis laplace-transform

A function continuous on all irrational points

real-analysis analysis functions

How to divide by a matrix

linear-algebra matrices functions

A nontrivial everywhere continuous function with uncountably many roots?

real-analysis analysis functions

Pull back image of maximal ideal under surjective ring homomorphism is maximal

functions ring-theory ideals maximal-and-prime-ideals

Example where $f\circ g$ is bijective, but neither $f$ nor $g$ is bijective

calculus real-analysis analysis functions

How to make a "function"?

algebra-precalculus functions

Piecewise functions: Got an example of a real world piecewise function?

functions graphing-functions

Why is $\frac{d}{dx}\ln(x) = \frac1x$ when the domain of $\frac1x$ includes $(-\infty,0)$?

calculus functions derivatives continuity

Continuous function with infinitely many zeros

real-analysis integration functions exponential-function

Calculate $\sqrt{\frac{1}{2}} \times \sqrt{\frac{1}{2} + \frac{1}{2}\sqrt{\frac{1}{2}}} \times \ldots $

algebra-precalculus functions arithmetic infinite-product nested-radicals

If every point is a local maximum, is it a step function?

real-analysis general-topology functions

Functions similar to Log but with results between 0 and 1

functions