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by: LumisROB |
last post by:
Is it possible to create matrixes with vector <vector <double >> ? If
it is possible which is the element m23 ?
You excuse but I am not an expert
Thanks
ROB
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by: Greg Buchholz |
last post by:
/*
While writing a C++ version of the Mandelbrot benchmark over at the
"The Great Computer Language Shootout"...
http://shootout.alioth.debian.org/gp4/benchmark.php?test=mandelbrot&lang=all
....I've come across the issue that complex<double>'s seem quite slow
unless compiled with -ffast-math. Of course doing that results in
incorrect...
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by: Web learner |
last post by:
The following code works fine
private List<double> GetDataFor(string column, int selectedYear) {
-------
-------
return list;
}
foreach (double item in GetDataFor("AirTemp", selectedYear)) {
Response.Write(item.ToString() + ", ");
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by: PengYu.UT |
last post by:
Hi,
In FFTW (http://www.fftw.org/), it defines the funciton fftw_malloc to
allocate memory properly aligned.
However, I only want to use new to allocate memory for
std::complex<double>. Can some body show me how to redefine the new
operator for an class already defined in the library?
Thanks,
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by: J.M. |
last post by:
I have data in a double array of length 2N, which actually represents
complex numbers with real and imaginary parts interlaced. In other words,
elements in this array with even indices represents the real part of a
complex number, elements with odd indices represent the imaginary part. I
actually need an array of length N of type...
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by: perroe |
last post by:
Hi
I have a array of complex numbers that are stored in a simple double
array. This is done since the array is part of an wrapper for an
external C library, and the imaginary part of the first element, and
the last element are known to be 0. I've implemented a -operator
that returns a ComplexReference object that basically maps a...
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by: T. Crane |
last post by:
Hi,
I'm struggling with how to initialize a vector<vector<double>>
object. I'm pulling data out of a file and storing it in the
vector<vector<double>object. Because any given file will have a
large amount of data, that I read off using an ifstream object, I
don't want to use the push_back method because this grows the...
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by: jeremit0 |
last post by:
I'm trying to sort a vector<complex<double and can't figure it
out. I recognize the problem is that there isn't a default operator<
for complex data types. I have written my own operator and can use
it, but std::sort doesn't seem to find it. I have copied a very
simple example below. Everything compiles just fine when the line
with...
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by: huili80 |
last post by:
Like in the following. Though it gives the expected result with
gcc4.0, is it really safe to do that?
What if it's not double but some non-POD type?
-----------------------------------------
#include <complex>
#include <iostream>
#include <iterator>
int main()
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by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main...
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language...
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it. ...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that...
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by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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