Question

Error in the proof for scaling the period of a function that leads to $f(x + p) = f(x) \Rightarrow f(x + p / k) = f(x)$

score 61 · Answer 1 · 2026-04-14 23:54:23

Error in the proof for scaling the period of a function that leads to $f(x + p) = f(x) \Rightarrow f(x + p / k) = f(x)$

score 131 · Answer 2 · 2026-04-13 11:24:41

131

Views

Differentiability of the Fourier series of $(x^2-1)^2$ on [-1,1)

Published on 13 Apr 2026 - 11:24

score 2.1k · Answer 3 · 2026-04-16 20:46:16

2.1k

Views

Proof check: Prove if $f'$ is periodic, then $f$ is periodic

Published on 16 Apr 2026 - 20:46

score 200 · Answer 4 · 2026-04-12 14:50:01

200

Views

How do I mathematically prove $ \sin^3(3t)$ is periodic?

Published on 12 Apr 2026 - 14:50

score 4.2k · Answer 5 · 2026-04-23 09:05:15

4.2k

Views

Is the signal u[n] +u[-n] periodic?

Published on 23 Apr 2026 - 9:05

score 112 · Answer 6 · 2026-04-15 23:41:14

112

Views

Proving that continuous function $f:[0,2] \to \mathbb{R}$ such as $f(0)=f(2)$, $\exists x \in [0,1]:f(x)=f(x+1)$

Published on 15 Apr 2026 - 23:41

score 532 · Answer 7 · 2026-04-12 23:31:16

532

Views

Evaluating improper integral as infinite sum of definite integrals

Published on 12 Apr 2026 - 23:31

score 319 · Answer 8 · 2026-04-11 18:05:50

319

Views

Find the frequency of a sum of periodic functions

Published on 11 Apr 2026 - 18:05

score 965 · Answer 9 · 2026-04-29 12:48:53

965

Views

Potentials for Vector Fields on a Circle

Published on 29 Apr 2026 - 12:48

score 877 · Answer 10 · 2026-04-12 22:47:59

877

Views

Riemann-Lebesgue lemma for periodic functions

Published on 12 Apr 2026 - 22:47

score 3k · Answer 11 · 2026-04-11 07:29:01

3k

Views

Is the sum of two sine waves periodic?

Published on 11 Apr 2026 - 7:29

score 7.6k · Answer 12 · 2026-04-12 19:45:35

7.6k

Views

Why do we use trig functions in Fourier transforms, and not other periodic functions?

Published on 12 Apr 2026 - 19:45

score 374 · Answer 13 · 2026-04-29 12:54:25

374

Views

Poincaré-Bendixson criterion applied to non-autonomous dynamical systems

Published on 29 Apr 2026 - 12:54

score 156 · Answer 14 · 2026-04-16 19:52:46

156

Views

Period of $f(x-1)+f(x+1)=\sqrt{5}\cdot f(x)$.

Published on 16 Apr 2026 - 19:52

score 154 · Answer 15 · 2026-04-14 14:11:07

154

Views

How to detect or prove that this recurrence relation defines a periodic sequence?

Published on 14 Apr 2026 - 14:11

List Question

Error in the proof for scaling the period of a function that leads to $f(x + p) = f(x) \Rightarrow f(x + p / k) = f(x)$

Differentiability of the Fourier series of $(x^2-1)^2$ on [-1,1)

Proof check: Prove if $f'$ is periodic, then $f$ is periodic

How do I mathematically prove $ \sin^3(3t)$ is periodic?

Is the signal u[n] +u[-n] periodic?

Proving that continuous function $f:[0,2] \to \mathbb{R}$ such as $f(0)=f(2)$, $\exists x \in [0,1]:f(x)=f(x+1)$

Evaluating improper integral as infinite sum of definite integrals

Find the frequency of a sum of periodic functions

Potentials for Vector Fields on a Circle

Riemann-Lebesgue lemma for periodic functions

Is the sum of two sine waves periodic?

Why do we use trig functions in Fourier transforms, and not other periodic functions?

Poincaré-Bendixson criterion applied to non-autonomous dynamical systems

Period of $f(x-1)+f(x+1)=\sqrt{5}\cdot f(x)$.

How to detect or prove that this recurrence relation defines a periodic sequence?

Trending Questions

Popular # Hahtags

Popular Questions