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by: TheFerryman |
last post by:
Is there a convenient function for changing the precision of a float?
(I have a bunch of floats that are currently printed out to 9 decimal
places and I'd like them to printed out at about 4)
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by: {AGUT2} {H}-IWIK |
last post by:
Hi,
Is it possible to compare / output two numbers to a certain precision?
for instance:
#include <stdlib>
#include <math>
#include <iostream>
#include <iomanip>
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by: Mad Butch |
last post by:
void Test()
{
float fValue = 0.5678f; // Value is 0.567800
double dValue = (double)fValue; // Value is 0.56779998540878
}
Is there anyway I can round a float at 6 positions behind the decimal?
That way the value would be 0.567800 again?
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by: Roger Leigh |
last post by:
Hello,
I'm writing a fixed-precision floating point class, based on the ideas
in the example fixed_pt class in the "Practical C++ Programming" book
by Steve Oualline (O' Reilly). This uses a long int to store the
value, and the precision (number of decimal points) is variable (it's
a templated class):
template <size_t _decimal_places = 4>
class FixedFloat {
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by: Nishant Deshpande |
last post by:
On Solaris 64-bit:
sizeof(long) = 8
sizeof(double) = 8 !!!
So i figure i can't store a long with the same precision in a double.
But, when i create a long and assign its largest value to it, then
assign this to a double, then subtract the double from the long, I get
0.
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by: Matt |
last post by:
Does the standard define default values for the format state of an
ostream? I would like to be able to put a stream in a standard format
state without thinking about how some other routine may have changed the
state.
I don't see the answer in Stroustrup or in the parashift FAQs.
I would like to write a statement like
my_ostream.restore_format_state_defaults();
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by: rupert |
last post by:
i've got the following code:
#include <iostream>
#include <string>
#include <vector>
#include <iomanip>
using namespace std;
int main(double argc, char* argv) {
double r = 0.01;
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by: Bo Yang |
last post by:
Hi, I am confused by the double type in C++. I don't know whether
below is legal or possible:
double PI = 3.141592675932;
Now, can I get another double variable from PI with lower precision,
for
example, 3.1415926 .
Or, in another way, how does the double presented in computer, and
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by: whatdoineed2do |
last post by:
#include <iostream>
using namespace std;
void convert(const double& d)
{
cout << "before=" << d << " after=";
cout.precision(15);
cout << d << endl;
}
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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 usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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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 synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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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 captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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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 most users, this new feature is actually very convenient. If you want to control the update process,...
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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 launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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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: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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