Question

New SAT Math Section: Comparing Equation of Line to Graph

score 133 · Answer 1 · 2016-01-28 17:49:32

133

Views

New SAT Math Section: Comparing Equation of Line to Graph

Published on 28 Jan 2016 - 17:49

score 392 · Answer 2 · 2016-01-28 18:03:11

392

Views

When is it possible to have $f(x+y)=f(x)+f(y)+g(xy)$?

Published on 28 Jan 2016 - 18:03

score 227 · Answer 3 · 2026-03-26 16:56:45

227

Views

A tighter family of Markov-like inequalities

Published on 26 Mar 2026 - 16:56

score 207 · Answer 4 · 2016-01-29 02:13:07

207

Views

Find all $f(x)$ such that $f(gcd(x,y))=gcd(f(x),f(y))$

Published on 29 Jan 2016 - 2:13

score 180 · Answer 5 · 2016-01-29 11:32:33

180

Views

Increasing function $f(x)$ such that $f(\gcd(x,y))=\gcd(f(x),f(y))$

Published on 29 Jan 2016 - 11:32

score 268 · Answer 6 · 2016-01-31 04:24:36

268

Views

Find all function $f:\mathbb{R^+}→\mathbb{R^+}$ that satisfies $f(xy)^{xy} =f(x)^x f(y)^y$

Published on 31 Jan 2016 - 4:24

score 160 · Answer 7 · 2016-02-01 18:25:19

160

Views

Functional equation $f(f(f(x)f(y)))=f(x)f(y^2)$ for $f: \mathbb R \rightarrow \mathbb R$.

Published on 01 Feb 2016 - 18:25

score 49 · Answer 8 · 2016-02-02 12:22:07

49

Views

$(2+z^2) f(z) + 3 z + 4 = f(z+1)$?

Published on 02 Feb 2016 - 12:22

score 194 · Answer 9 · 2026-04-02 05:25:37

194

Views

A Increasing Multiplicative Functional Equation where $nm$ is a cube

Published on 02 Apr 2026 - 5:25

score 104 · Answer 10 · 2016-02-05 08:05:52

104

Views

Does there exist such a function $f(x)$ that $f^n(x)=\left (1-\frac {1}{\sqrt[n]{x}} \right)^n?$

Published on 05 Feb 2016 - 8:05

score 408 · Answer 11 · 2016-02-05 09:40:10

408

Views

Find all $f:\mathbb {R} \rightarrow \mathbb {R}$ where $f(f(x))=f'(x)f(x)+c$

Published on 05 Feb 2016 - 9:40

score 154 · Answer 12 · 2026-03-29 05:49:37

154

Views

Error with the proof that all solutions to the Cauchy Functional Equation are linear

Published on 29 Mar 2026 - 5:49

score 76 · Answer 13 · 2016-02-07 21:26:56

76

Views

Functional Equation of Probability Distributions

Published on 07 Feb 2016 - 21:26

score 885 · Answer 14 · 2016-02-08 17:49:17

885

Views

How to show that $f$ is a straight line if $f(\frac{x+y}{2})=\frac{f(x)+f(y)}{2}$?

Published on 08 Feb 2016 - 17:49

score 112 · Answer 15 · 2026-03-29 12:39:17

112

Views

how to calculate derivative of $f_n(x)=f \circ f ... \circ f(x)$? Derivative on $f \circ f_{n-1}$ or $f_{n-1} \circ f$?

Published on 29 Mar 2026 - 12:39

List Question

New SAT Math Section: Comparing Equation of Line to Graph

When is it possible to have $f(x+y)=f(x)+f(y)+g(xy)$?

A tighter family of Markov-like inequalities

Find all $f(x)$ such that $f(gcd(x,y))=gcd(f(x),f(y))$

Increasing function $f(x)$ such that $f(\gcd(x,y))=\gcd(f(x),f(y))$

Find all function $f:\mathbb{R^+}→\mathbb{R^+}$ that satisfies $f(xy)^{xy} =f(x)^x f(y)^y$

Functional equation $f(f(f(x)f(y)))=f(x)f(y^2)$ for $f: \mathbb R \rightarrow \mathbb R$.

$(2+z^2) f(z) + 3 z + 4 = f(z+1)$?

A Increasing Multiplicative Functional Equation where $nm$ is a cube

Does there exist such a function $f(x)$ that $f^n(x)=\left (1-\frac {1}{\sqrt[n]{x}} \right)^n?$

Find all $f:\mathbb {R} \rightarrow \mathbb {R}$ where $f(f(x))=f'(x)f(x)+c$

Error with the proof that all solutions to the Cauchy Functional Equation are linear

Functional Equation of Probability Distributions

How to show that $f$ is a straight line if $f(\frac{x+y}{2})=\frac{f(x)+f(y)}{2}$?

how to calculate derivative of $f_n(x)=f \circ f ... \circ f(x)$? Derivative on $f \circ f_{n-1}$ or $f_{n-1} \circ f$?

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