1,154 reputation
311
bio website
location
age 27
visits member for 2 years, 10 months
seen Dec 12 at 21:39

Dec
8
revised Convergence of recursive application of finite-difference operator to $C^{\infty}$ functions
Adding text.
Dec
8
answered PDE Initial-Boundary value problem question
Dec
8
revised Convergence of recursive application of finite-difference operator to $C^{\infty}$ functions
Adding text.
Dec
8
asked Convergence of recursive application of finite-difference operator to $C^{\infty}$ functions
Dec
7
comment Approximating $\int_0^1 t^n \exp \left( -\frac{(t-1/2)^2}{2\sigma^2}\right) \, dt$ without Laplace's method
What about Romberg integration? That works for a much larger class of integrands and is very fast.
Dec
7
comment Approximating $\int_0^1 t^n \exp \left( -\frac{(t-1/2)^2}{2\sigma^2}\right) \, dt$ without Laplace's method
Mathematica can evaluate these integrals in closed form using the error function-could you put each integral in a function lookup-table or is evaluating the error function too expensive?
Dec
7
comment Reference request: Introduction to Applied Differential Geometry for Physicists and Engineers
To be fair, I liked the other suggestion better.
Dec
6
answered Reference request: Introduction to Applied Differential Geometry for Physicists and Engineers
Dec
6
answered Banach contraction Principle
Dec
5
comment how to show that Kirchhoff's formular solves wave equation.
What is $M_t(f)$?
Dec
4
answered General derivative of $\text{sinc}(x)$
Dec
4
awarded  Curious
Dec
4
comment $L^2$ and uniform norm of $\text{sinc}\, x$ and its derivatives
I love your math,man. My work on this was contorting itself into a nightmare.
Dec
4
accepted $L^2$ and uniform norm of $\text{sinc}\, x$ and its derivatives
Dec
3
asked $L^2$ and uniform norm of $\text{sinc}\, x$ and its derivatives
Nov
30
revised Logarithm of Matrix exponential
Adding additional convergence criteria.
Nov
30
revised Logarithm of Matrix exponential
Adding convergence criteria
Nov
30
answered Logarithm of Matrix exponential
Nov
29
comment D'Alembert Formula where PDE has only one boundary condition
You are right-this could situation could be visualized by having one end of the string hooked to a heavy wall which was being pulled upward.
Nov
25
awarded  Enthusiast