# All Questions

0answers
6 views

### WorkingPrecision and NDSolve Method Plugin Framework

I'm studying some new numerical integration algorithms using NDSolve Method Framework to specify it. When I try to set ...
1answer
27 views

### Finding pixel coordinates from morphological components

I used morphological components to find the connected components in a binary image, is there a way to find the pixel postions for these integers?
0answers
15 views

### Background color of input/output cells

I would like to set automatically the background colour of input and output cells in any newly open notebook. How to do this? thanks, L
0answers
30 views

### Why Base64 ends with a newline? (\n)

Why everything converted to Base64 has a newline at the end? It isn't one of base characters, is it? ...
0answers
10 views

### Overwriting a file with export[SystemDialogInput[]]

When I use the following code: Export[SystemDialogInput["FileSave", "myP1P3bmp.png"],Image[myBitMap, "Bit"], "PNG"]; I get a somewhat unexpected behavior. I can ...
0answers
26 views

### More efficient method to implement knots instertion algorithm

Knots instertion algorithm of B-spline About the definition of B-spline, please see here. Suppose $\overline u \in [u_{k},u_{k+1})$initially has multiplicity $s$, and suppose it is to be inserted ...
0answers
19 views

### Fourier Series and epicycles - How to find the radii and angular velocities from a function's Fourier Series expansion

The following code is a bit clumsy, but it constructs a variable number (n) of epicycles using the values from the radii and angularVel tables that follows the path of a parametric given as a sum of ...
0answers
18 views

### Scroll Position for a Notebook

If you have a notebook with lot of content open you will see a scroll bar on the far right and bottom. I'm looking for a function that will return the current value of of the scroll bars. I'd also ...
1answer
30 views

### Nesting BaseForm several functions deep causes dependent functions to not fully evaluate. Solutions?

Below is a simplified scenario of a problem that I'm running into. There are 3 functions each wrapped with BaseForm[] and a default base of 10 is passed to each ...
0answers
24 views

### How to do boolean optimization function on mathematica

I am working on optimization but in a boolean domain. The function to be optimized is defined like this: {0,1}^n -->R. I have M boolean vectors and I need to do the linear regression to estimate the ...
2answers
31 views

### replace rows based on index with different rows

I have a list and I want to replace all rows that are given by index pos with rows from different list. But the rows in different list are sequential while the rows in the original list that need to ...
3answers
59 views

### Manipulation linear systems of equations

I have the following system of equations: i1 = ix - β*ib; i2 = (β + 1)*ib; i3 = ix + ib; vx = i1*Rc + i3*Rb; v1 = i2*Rϵ + i3*Rb; v1 = -ib*rπ; I tried using: ...
3answers
53 views

### Sum selected rows/columns and replace them with the sum

I have the code: pos = {2, 3, 5}; tbl = Table[RandomReal[], {i, 6}, {j, 3}]; totRow = Total /@ tbl[[pos]]; which defines some row indices (pos) and a table and ...
0answers
77 views

### How to know the usage of undocumented function like LinearAlgebraBLAS?

BLAS is not documented in mathematica. Using ?LinearAlgebraBLAS* gives But None of the function has a detailed usage information Click any of the ...
0answers
29 views

1answer
382 views

### Does Mathematica have a functional programming idiom to loop over a list till a condition is met? [duplicate]

The module below takes a list of integers and performs fadic addition on it (if a bit slowly). ...

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