Have to double-click calendar control to correctly retrieve SelectedDate?

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cannot convert parameter from 'double (double)' to 'double (__cdecl *)(double)' error

by: Sydex | last post by:

When I compile code I get error C2664: 'Integration::qgaus' : cannot convert parameter 1 from 'double (double)' to 'double (__cdecl *)(double)' in this part : double Integration::quad2d(double (*func)(double,double)) { nfunc = func ; return qgaus(f1,x1,x2);//error there

C / C++

17809

Convert from std::vector<double> to std::vector<int>

by: Anonymous | last post by:

Is there a non-brute force method of doing this? transform() looked likely but had no predefined function object. std::vector<double> src; std::vector<int> dest; std::vector<double>::size_type size = src.size(); dest.reserve(size); for (std::vector<int>::size_type i = 0;

C / C++

6083

When (32-bit) double precision isn't precise enough

by: DAVID SCHULMAN | last post by:

I've been trying to perform a calculation that has been running into an underflow (insufficient precision) problem in Microsoft Excel, which calculates using at most 15 significant digits. For this purpose, that isn't enough. I was reading a book about some of the financial scandals of the 1990s called "Inventing Money: The Story of Long-Term Capital Management and the Legends Behind it" by Nicholas Dunbar. On page 95, he mentions that...

C / C++

3685

How to sort CArray<double, double> with quick sort

by: Frank King | last post by:

Hi, I am using CArray and quick sort funciton to sort an array of double type of data points. I found an article in MSDN HOWTO: Quick Sorting Using MFC CArray-Derived Classes ID: Q216858 The article works well with CStringArray. But when I wrote the following code about double type. It does not work for

.NET Framework

1470

'^' pointer to a double

by: Peteroid | last post by:

I'm using VS C++.NET 2005 Express in /clr. How do I create, and then use, a '^' pointer to a 'double'? That is, assuming its possible, please fill in the question marks below (there are two of them): double x = double(7) ; double y ; double^ x_ptr = ?x ; y = ?x_ptr ; // y = double(7)

.NET Framework

8220

Error messages! area(double, double) cannot be applied to ( )

by: JWest46088 | last post by:

I keep getting these error messages: area(double,double) in Rectangle cannot be applied to () return "Area: " + Rectangle.area() + "\tCircumference: " + Rectangle.perimeter(); ^ perimeter(double,double) in Rectangle cannot be applied to () return "Area: " + Rectangle.area() + "\tCircumference: " + Rectangle.perimeter(); ^ setSides(double,double) in Rectangle cannot be applied to (double)...

Java

23388

error: expression must have pointer-to-object type

by: urkel | last post by:

Hi everyone, I critically need help to solve this problem related to pointer in C++ Basically, I have a C/C++ program "retardselfenerg" calling a Fortran 90 subroutine "surfGF4.f90". i am so doubtful if my definitions of pointer variables and their use in calling function are correct. #include<bla bla bla......h> #include<bla bla bla.h> double surfGF4_(double*, double*, double*, double*, double*, double*, double*, double*, double*); ...

C / C++

5590

double to double error in c++

by: dj10fld | last post by:

I am getting a (cannot convert double to double in assignment errors) here is a part of my code #include <iostream> #include <iomanip> #include <cmath> using namespace std; #define MaxSize 1000 double loancalc (double *months, double *intrat, double *princ, double calcprnc, double calcpay, double calcbal, double calcnew, double calcInt); double display (double *months, double calcprnc, double calcpay, double calcbal, double...

C / C++

3820

cosine function returning long double (high resolution)

by: ratcharit | last post by:

Currently using cosine function in math.h Currently I get: 1 = cos(1e^-7) Is there another way for cos to return value of high accuracy say: 0.999999 = cos(1e^-7)

C / C++

5780

C:\KrugiKorobki.cpp|55|error: invalid operands of types `int' and `double' to binary

by: Genro | last post by:

#include<stdio.h> #include<TX/graphics.h> #include<time.h> // I need help! struct Krug{ double _x; double _y; double _skox; double _skoy; double _granx1;

C / C++

8265

What is ONU?

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...

General

8196

Changing the language in Windows 10

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,...

Windows Server

8637

Maximizing Business Potential: The Nexus of Website Design and Digital Marketing

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...

Online Marketing

8504

Discussion: How does Zigbee compare with other wireless protocols in smart home applications?

by: tracyyun | last post by:

Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...

General

7193

AI Job Threat for Devs

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...

Career Advice

6125

Access Europe - Using VBA to create a class based on a table - Wed 1 May

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...

Microsoft Access / VBA

4197

Windows Forms - .Net 8.0

by: adsilva | last post by:

A Windows Forms form does not have the event Unload, like VB6. What one acts like?

Visual Basic .NET

2625

transfer the data from one system to another through ip address

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

C# / C Sharp

1808

How to add payments to a PHP MySQL app.

by: muto222 | last post by:

How can i add a mobile payment intergratation into php mysql website.

PHP