Questions tagged [numerics]
54 questions
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How to remove countings from a cell in Excel (linux)
I have a data in Excel with the following format:
0 PLEKHG6 0 ZIC1 0 YOD1 0 PLEKHG6 0 DCUN1D1 0 CAMK2N1
1 SKIL 1 MOB4 1 HOXB1 1 SKIL 1 KLF3 1 DLX5
2 YOD1 2 DGKI 2 FIGN 2 YOD1 2 GRM7 2…
0
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C# Create BigInteger from string of different base
How can I create a Numerics.BigInteger object from a string of another base in C#, like binary or hex string?
For example:
01101000001111100100100010001100010110000000100000000011000111011110111010111110
to
492275040001072000003774
Thanks!
BlackCath
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Numerical Gradient in Matlab - Rounding Issues
I'm trying to compute a numerical subgradient of a convex function. My test subject is the Wolfe function. It doesn't need to be super accurate, so I tried a normal finite differential in both directions: (f(x-h)-f(x+h))/2h. In code:
delta =…
Florian Rohm
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1 answer
Convertion of textbox value to single adds extra precision in C#
While converting value of a textbox to Convert.ToSingle() adds some extra precision for values like 2.7 to 2.7999999523162842. I don't want any rounding of this value because I have to store the exact value entered by the user to DB. So if any one…
tharadas das
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6 answers
Pass function as static class for fast numerics in Java
I want to make some numerical computations in java, and to make operation really modular, I want pass functions as parameters of other functions. I was searching and normally it is done in java using class which warp the function. I realy don't need…
Prokop Hapala
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1 answer
Deduce a unique number from number
I work on the tree where each node has N children.
In my case each node has a unique identifier. i want to deduce an identifier of father node from the child identifier.
So, we can add an information on child identifier to deduce that for example:…
Mehdi
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What is a clever bounding box for a 3D monte carlo integration?
For a project, I need to calculate the overlap volume of two overlapping ellipsoids in 3D. The method itself isn't a problem: I'm basically picking random points within a bounding box and checking whether they're in both ellipsoids…
-2
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1 answer
some files are missing! using Math.net numerics 2.4.0
I'm using Math.Net numerics ver 2.4.0 in my C# project, winform and after running the project and doing some parts it says:
find a source:ManagedLinearAlgebraProvider.Double
original location:…
bunNyBug
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1 answer
Check for alphas and numerics in
I'm using the dbvisualizer SQL statement and am trying to search a field for whether it has letters and numbers, or just one or the other. Is this possible to do in a simple manner? Currently I'm just checking each one individually like so:
case…
