Recent content by Ribena

Hi all, I'm trying to integrate the function below with respect to x exp(ix)-exp(-ix) With infinity and negative infinity as the limits. Would the integration be possible?

Exactly, so I was wondering if there was any way in general to infer the expression of x. I think the only way is to perhaps add a constraint that does not result in an infinite solution case, but if possible, I didn't want to change the original constraints. Just wanted to seek some opinions...

Ah, I get what you mean now. I'm not from a mathematical background so do bear with me is some of my definitions are not precise. So I basically have 4 equations with 4 unknowns to solve let's assume that they are w,x,y,z. By eliminating the variables, I've managed to bring them down a single...

Polynomials.

Hi all, So I've been trying to solve a system of 'linear' equations and I understand that for a non trivial solution to exist you have to get the determinant to reduce to zero. Given that you have an equation which takes the form (f(x))*A=0, where f(x) is an arbitary function and A is...

Hello everyone, I'm hoping someone will be able to shed some light on what I have to ask. Basically, I'm interested in the reflection of Rayleigh Waves/ Surface Waves as it travels and passes from a free surface to a surface in contact with a liquid. In particular, is there any written text or...