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New posts in wave-equation
Wave equation how to derive the form $u(x,t)=f(x+ct)+g(x-ct)$
partial-differential-equations
wave-equation
How to modify the function $y=a-be^{-cx}$ so that it will look wavy? [ other forms can be suggested ]
exponential-function
graphing-functions
curves
upper-lower-bounds
wave-equation
Graphing solutions of the plucked string equation (Strauss PDE)
partial-differential-equations
wave-equation
Robin BC in the 1D wave equation
boundary-value-problem
wave-equation
$\frac{\partial^2 u}{\partial t^2}-c^2\frac{\partial^2u}{\partial x^2}=0\text{ implies } \frac{\partial^2 u}{\partial z \partial y}=0$
analysis
partial-differential-equations
partial-derivative
wave-equation
$\sup_K |\partial^{\alpha}u|\le C^{|\alpha|+1}\alpha!^s$ then $u$ is analytic for $s\le 1$
real-analysis
partial-differential-equations
supremum-and-infimum
wave-equation
Nonhomogeneous wave equation
partial-differential-equations
wave-equation
Wave Equation by separation of variables
linear-algebra
algebra-precalculus
partial-differential-equations
wave-equation
Solve first order PDE system
partial-differential-equations
wave-equation
characteristics
hyperbolic-equations
Interpretation of an integral transform from the wave equation to the heat equation
partial-differential-equations
physics
heat-equation
wave-equation
The energy method for $u_{tt}-du_t-u_{xx}=0, (0,1)\times(0,T) $
partial-differential-equations
wave-equation
linear-pde
Drum PDEs, Double Fourier Expansions, and Synthesis
partial-differential-equations
fourier-analysis
fourier-series
wave-equation
music-theory
Intuitive explanation of the difference between waves in odd and even dimensions
partial-differential-equations
intuition
wave-equation
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