# Tagged Questions

31 views

### How to find a graph's equation from its points

I have a set of data that constitutes the graph on the picture. What I want to know is how would I find the equation equivalent to that kind of graph? The X are on the interval $[1,10]$.
35 views

### Formula to link two exponential values together - doesn't quite work

Basically, I've done a script, and I'm stuck on a formula for it. After I run the code on a cube, based on two different inputs (detail level and vertex average iterations), the resulting size will be ...
13 views

### Well-behaved interpolation

I have a set of time-dependent scalar data. I would like to remove certain time intervals and fit the remaining data "well-behaved", which I cannot quite exactly define. The intervals may also be at ...
86 views

### Sigmoid function with separate control of derivative at 0 and sharpness of bend.

For a physical relationship, $f(x)$, I'm trying to model, i have a fairly good determination of some of the boundaries, such that $f(0) = 0$ $f'(0) = B$ $\lim_{x\to\infty} f = A$ So far, what I ...
52 views

### Is it possible to get function from bunch of points?

I have some points which I know the position in 3D. and that points made in sequence. for example, . (x1,y1,z1) ...
58 views

### Converting data to a specified range

I am trying to convert data to a particular range of 0-10. Actual Data may vary from - 50000 - 26214400. I have broken this down in to 4 parts as follows - ...
184 views

### How to determine a function from outputs

Given the following inputs and outputs to a function, how would I determine an algorithm to fit? ...
184 views

### Fitting a surface to 2D measurements

I am looking for a way to fit a surface given a set of measured data $(x, y) \mapsto z$. A typical example would consist of anywhere between $10$ and $30$ measurements spread evenly over a disc. ...
3k views

### How to perform simple linear interpolation on a data set

With the following data set, what is the best way to interpolate the data for each time. ...
I compute (at a great cost) upper and lower bounds $f_u(x)$ and $f_l(x)$ of an unknown function $f(x)$ at points $x$ in $[0,1]$. Now I am interested in an estimation of the derivative $f'(x)$. I ...