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I have this dot product, calculating weighted means, and is applied to two columns in a list:
# calculate weighted values in sequence
for i in range(len(temperatures)-len(weights)):
...

I have a big, ugly query which is quadratic in the input size and therefore want to display an approximate completion time prior to sending it off:


select concat('Ready by ', time(now() +...

This is what I have come up with in the meantime:
select *
from (select events.*, case when in_event then @delta := level else @delta end delta from events, (select @delta := 0) e order by date)...

I need to fix an SQL statement in MySQL that should calculate a field using values from two of the columns and I prefer to do this using set-based programming, ie not procedural. What needs to happen...

Google for slideshow javascript and many examples of sample code will come to the fore.

Of course you can always use Google:
https://en.wikipedia.org/wiki/List_of_content_management_systems

Are you familiar with any CMS? This matters, because understanding the technical limitations...

Hard to imagine that in the two decades of its existence this product once ruled supreme, but the news is finally there:
RIP Internet Explorer: Twitter mourns and mocks death of Microsoft...

As per the following announcement: ​Google Open Source Blog: Bidding farewell to Google Code (http://google-opensource.blogspot.nl/2015/03/farewell-to-google-code.html)

A lot of open source...

The temperature logger came with a CD with software, but it was developed for MS Windows. I am looking to access the data logged onto it. I will worry about changing the sampling frequency later.

Thank you for your response. The command leads to the following error message:
mount: special device /dev/hiddev0 does not exist

When inserting a temperature logger into a Centos 7.0 machine, the relevant dmesg lines read:
[86557.171461] usb 2-1.4: new full-speed USB device number 4 using ehci-pci
[86557.258621] usb 2-1.4:...

For the record, the upgrade from Centos 6.5 to Centos 7 was performed again and we have been experiencing no higher temperature than 45C, routinely lower than 40C. This is the case for the last two...

There is a related thread in this subforum:
https://www.unix.com/what-is-on-your-mind-/141344-how-can-we-increase-size-our-community.html
Whatever solution is put in place, I think it should be...

A nested query must have an alias, so I added 'X' as the alias in your code:

select id, 'today', 'monthago', today, monthago
from (
SELECT id, stdate, DATE_SUB(CURDATE(), INTERVAL 1 month) as...

There are countless examples of that on the internet, for example here:
PHP Select Data From MySQL (http://www.w3schools.com/php/php_mysql_select.asp)
From the first example on that page you would...

Can you explain a little more about how to get the increment value? How is it stored in the MySQL table?
For the minimum and maximum value you would normally perform something like this:
SELECT...

Thank you again for your response. SVG format is supported and I am using Ctrl-Shift-J as a surrogate for Firebug.

I dont understand this solution. You are declaring an object test that is not actually used for display purposes. This looks very hackish to me:
img = document.getElementById("test")

I am looking to display the pdf of one of two distributions, depending on what the user selected:

<script type="text/javascript">
function distributionChange() {
var img =...

Thank you all for your answers. Some elegant solutions have been proposed!

I have code as follows to perform some validations on C++ and Javascript files:
if [ "$ext" -eq "cpp" ] || [ "$ext" -eq "h" ] || [ "$ext" -eq "js" ]; then

However, when I want to add other...

Point number 5 is key to answering your question. Without having a connection you would be stuck with ftp-type solutions, scp solutions or what gandolf989 is proposing. As far as I know there is no...

I think if you embark on something that has the potential to become quite large, you should not overreach. Start with something that works for you, even if not all the details are implemented yet....

I am using trac (The Trac Project (http://trac.edgewall.org/)) for an intranet and want to ensure the styling is aligned with the corporate styling. After I have identified and amended the...

And then as the final step, force it to two decimals as follows:
num.toFixed(2)