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Calculating multiline text height for UILabel/UITableViewCell: different results when calculating vs actual drawing
Category : Mobile Programming

This general topic has been asked here multiple times: how to render UITableViewCells with varying amount of text and thus varying height. The canonical answer is: you calculate the height in table view controller delegate in heightForRowAtIndexPath using sizeWithFont:constrainedToSize:lineBreakMode:. Later, the cell gets drawn, and you use something like [label sizeToFit] if needed, and all wo

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Is there any advantage to calculating the duration in MySQL as opposed to calculating duration in PHP (and then storing in MySQL)?
Category : PHP

QUESTION: Is there any advantage to calculating the duration in MySQL as opposed to calculating duration in PHP (and then storing in MySQL)?

I had intended on calculating duration for each time an activity is done. Duration would be calculated in PHP then inserted into a MySQL DB (along with other data such as start time, end time, user, activity, etc).

But, based on thi

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Calculating phi(k) for 1<k<N
Category : Development Tools & Services

Given a large N, I need to iterate through all phi(k) such that 1 < k < N quickly. Since the values of N will be around 1012, it is important that the memory complexity is sub O(n).

Is it possible? If so, how?

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TAGS : Calculating

Calculating a Sum with C++
Category : C & C++ & C#

I wrote the following code to sum the series (-1)^i*(i/(i+1)). But when I run it I get -1 for any value of n.

Can some one please point out what I am doing wrong? Thank you in advance!

#include <iostream>
using namespace std;
int main()
int sum = 0;
int i = 1.0;
int n = 5.0;

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TAGS : Calculating with

Calculating the sum in C++
Category : C & C++ & C#

How do I calculate the sum to below in C++?
I tried the following code but failed.

#include <iostream>
using namespace std;
int main()
int n, p, r = -1;
cin >> n;
for (p = 0; p < 10; p++)
r *= (-1);
cout << r << endl;
return 0;

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TAGS : Calculating

Calculating CRC example
Category : Coding

Could someone please show me the steps in calculating this CRC code?
Generator polynomial G(x)=10
message with crc appended: 110

When the data is divided by G(x) then the remainder is 0. So do that mean the CRC is 0 or nothing or is that even possible?

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R: Calculating MSE
Category : Web Design

I've got a function, I've added noise to it, then smoothed it to get a regression line. How can I find the MSE between the original function and the regression line at 30 equally spaced points?

Or, how can I give R an x value and get the y value on a regression line?

This is a scaled down version of my problem:

> test<- function(m) {3*m^2+7*m+2}
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TAGS : Calculating

calculating gpa sql
Category : Databases

to calculate SGPA of a students in table the formula is sum of 3*gradepoint of every course registered by a specific student in specific semester and dividing this sum by no.of courses.

i am having a table named All_Registration having fields and data as followed


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TAGS : calculating

Calculating with PHP
Category : PHP

I am unable to calculate a cubic meter with PHP using the following syntax-

$value = $data["Cm-Length"]*$data["Cm-Depth"]*$data["Cm-Height"]/1000000

In the same table I can successfully calculate the cubic feet of the same item using the following syntax-

$value = $data["Inches-Length"]*$data["Inches-Depth"]*$data["Inches-Height"]/1728

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TAGS : Calculating with

How to Calculating the time?
Category : Databases

Using MS Access 2007


ID Date Time

001, 20091111, 141625
001, 20091112, 122345
001, 20091112, 180000
001, 20091113, 100000
001, 20091113, 120000
001, 20091113, 180000
001, 20091113, 160000

From the above table i want to add one more column as a status. Status Should be In or Out.

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TAGS : Calculating time

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