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New posts in periodic-functions
How to find Laplace transform of periodic function
laplace-transform
signal-processing
periodic-functions
Does the phrase "instantaneous frequency" make sense?
fourier-analysis
periodic-functions
How to find period of this periodic function?
periodic-functions
Riemann-Lebesgue lemma: Construction of weak convergent sequences from 1-periodic function
functional-analysis
lebesgue-integral
weak-convergence
periodic-functions
Smooth sawtooth wave $y(x)=\cos(x-\cos(x-\cos(x-\dots)))$
trigonometry
signal-processing
implicit-differentiation
periodic-functions
Real-analytic periodic $f(z)$ that has more than 50 % of the derivatives positive?
calculus
real-analysis
taylor-expansion
periodic-functions
If $f(x+1)+f(x-1)=\sqrt 3 f(x), \forall x$ then $f$ is periodic.
functional-equations
periodic-functions
Is $\cos(\alpha x + \cos(x))$ periodic?
real-analysis
functions
trigonometry
periodic-functions
Periodic sequences given by recurrence relations
sequences-and-series
recurrence-relations
dynamical-systems
periodic-functions
Period of derivative is the period of the original function
real-analysis
derivatives
periodic-functions
Is $f(x)=\sin(x^2)$ periodic?
real-analysis
trigonometry
periodic-functions
Why is the period of $(\sin{\theta})^0 +(\tan{\theta})^0$, $\frac{\pi}{2}$
periodic-functions
Bounds (and range) of a nonlinear difference equation
recurrence-relations
dynamical-systems
periodic-functions
What is the periodicity of the function $\sin(ax) \cos(bx)$ where $a$ and $b$ are rationals?
trigonometry
functions
periodic-functions
show that $a_{n+874}=a_{n}$,if such $a_{n+2}=\left\lceil \frac{4}{3}a_{n+1}-a_{n}+0.5\right\rceil$
sequences-and-series
recurrence-relations
periodic-functions
Must a continuous, non-constant, and periodic functions have a smallest period?
real-analysis
continuity
periodic-functions
Average Distance Between Zeroes of $\sin(x)+\sin(x\sqrt{2})+\sin(x\sqrt{3})$
real-analysis
periodic-functions
almost-periodic-functions
$\cos(x)+\cos(x\sqrt{2})$ is not periodic
calculus
functions
trigonometry
periodic-functions
Is it possible to detect periodicity of an analytic function from its Taylor series coefficients at a point?
taylor-expansion
periodic-functions
The sum of two continuous periodic functions is periodic if and only if the ratio of their periods is rational?
real-analysis
periodic-functions
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