# Questions tagged [model]

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### Conditions for always positive gradient of heat field in evolutionary thermo-elastic system

I am investigating stability and convergence of series of approximations for coupled thermoelasticity problem yielded by one-step recurrent time-integration scheme. I've managed to show that the one-...
63 views

### Convert the following model into an LP model (not asking for standard form), includes a max (a,b,c,d)

Convert the following model into an LP model. Note that you're not being asked to convert this to standard form. $$\min z = \max (x_1, x_2, x_3, 2000)$$ s.t. $$-2x_1 + x_2 + x_3 \geq -4$$ 3x_1 - ...
283 views

### Dimensionality reduction of the domain of f(x)

I'm wondering if there is something analogous to a PCA for data sets where there is a dependent variable. (Though I am interested in any method of dimensionality reduction, PCA is just an example.) ...
8k views

### scipy odeint - Excess work done on this call

I'm newbie both in calculus and Python/Scipy so I apologize if this question is too dumb. I'm trying to model flow between two pressure vessels. Let's say we have two points and a link between them ...
91 views

### Best place to start learning Stereophotogrammetry

Firstly I would like to achieve a final goal as can be found in the links below: Link 1 Link 2 Now I started doing a little bit of research and found that Stereophotogrammetry is the field I should ...
113 views

### What are the governing equations solved in coupled atmosphere-ocean models?

In (hydrostatic) atmospheric general circulation models, for example the so-calle Primitive Equations, consisting of the horizontal momentum equation, the hydrostatic balance, the continuity equation, ...