# Tag Info

### From an engineering point of view what are the downsides of a too accurate model?

Beware of overfitting. A more accurate model of gathered data from a system may not be a better predictor of future behavior of a system. The above image shows two models of some data. The linear ...
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### From an engineering point of view what are the downsides of a too accurate model?

The most obvious downside is cost, all engineering projects have a finite budget and spending more money than you need to is clearly a bad thing not to mention wasting time. There can also be more ...
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### From an engineering point of view what are the downsides of a too accurate model?

There are a few reasons. From a purely pragmatic perspective, it's due to time constraints. The requisite time to solve a model increases far, far faster than the level of precision, and whichever ...
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### From an engineering point of view what are the downsides of a too accurate model?

An extremely accurate model may require a prohibitive amount of input data. It might be possible to generate an excellent model of weather systems, for example, by taking as input the position and ...

### From an engineering point of view what are the downsides of a too accurate model?

"Too accurate" is not monotonic. It can actually create an illusion of fidelity which makes you think it's worth pumping more money into the simulation. This becomes very important when you're ...
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### How I can compute cutting processes with continuum mechanics?

Real-world engineering example To my knowledge there are no simple analytical methods of determining whether an object such as a sword can cut cleanly through any arbitrary object. In manufacturing ...
Accepted

### polar moment of inertia for compound shape

Without looking up all the formula's for you, the approach to this problem is rather simple. Find the polar moment of a solid cylinder, and subtract off the polar moment of the holes. For the off ...
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### Matrix Calculation

Your numbers are right. You are just confused about matrix multiplication. See https://en.wikipedia.org/wiki/Matrix_multiplication (or any linear algebra textbook): For matrix multiplication, the ...
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Accepted

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### How to simulate car acceleration

I don't know if you're still interested in this topic, but it sort of relates to a question I had about modeling acceleration. I might be able to clear up some confusion, though, because I had the ...

### How to simulate car acceleration

Real-world torque at standstill: This is not your main area of concern but needs addressing so that you can then properly deal with the main issue. Your statement at t=0 acceleration is ...
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