Tagged Questions
1
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1answer
46 views
Inaccuracy in numerical calculation of arclength of part of an ellipse
I am trying to numerically calculate the arclength of part of an ellipse according to:
$$ L = \int_0^{\phi_s}\sqrt{r^2+\left(\frac{dr}{d\phi}\right)^2} d\phi $$
where $r$ is defined as:
$$ ...
1
vote
2answers
143 views
How do I calculate numerically a tensor in polar coordinates?
You can formulate the question also like this: What is the easiest way of calculating directed derivative of a function if its values are evaluated in a cartesian grid?
a) fit a (spline) surface, ...
0
votes
1answer
338 views
Numerical Integration of a Gaussian Distribution in Polar Coordinates
I want to numerically evaluate a 2D-integral of a specific probability distribution over some given area (I use MATLAB so all the code below is MATLAB code). I broke down the problem so that it ...
