# Tagged Questions

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### Implementing formula correctly in matlab for neuroscience: total soma membrane potential?

Please help me to understand: am I correctly implementing a total soma membrane potential (TSMP) equation in Matlab? Due to being a new member I need to use this list link to refer to the links ...
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### Change MATLAB code from Lax-Wendroff to Leapfrog

I want to see how leapfrog would look using this code, but I'm having issues implementing it. I think my biggest problem is adding in the $U_j^{n-1}$ term, I just don't get the logic. Here's what ...
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### Software for numerical solution of a non-linear ODE system?

I have been given a nonlinear system of ODEs which has arisen out of a colleague's engineering research: \begin{array}{rcl} \dot{x}_0&=&x_1\\ ...
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### Effects of numerical integration stepsize on impulse inputs (e.g., delta function)

Some models of neurons treat synaptic input (from other neurons) as a single impulse, such as the Dirac delta. But doesn't this make the magnitude of that impulse a function of numerical integration ...
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### How to convert a hologram into an image?

Suppose one knows in full detail the phase and intensity of monochromatic light in a plane. This is basically what a hologram records, at least for some section of a plane. By using this as the ...
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### Fast methods to check linearity of differentials? Generalizing linearity?

The L1 Mat-1.1010 -course here has taught me the linearity conditions $f(a x)=a f(x)$ and $f(a+b)=f(a)+f(b)$. I want to generalize it, some quite irrelevant slow investigation here. It requires time ...
One applied math question talks about an elastic bar with a displacement equation $du^2/dx^2 = 1$ for a uniform load and fixed on both ends. I solved this using the Toeplitz matrix K and u comes out ...