## Shop sends Mail with order cancellation

We currently have a problem with our shop sending cancellations to our customers after they have successfully created and payed an order.

They place an order, pay and everything works fine. The status of the order is correct as well. But after a few minutes our system creates an cancellation document and sends it via mail to our customer.

Anyone an idea whats the problem here?

Thanks a lot in advance. All the best

## What factors led to the poor reception and early cancellation of Wraith: The Oblivion?

Wraith: The Oblivion was published by White Wolf Games in 1994, but cancelled in 1999. Many of the books during the run show signs of being compressed together. While White Wolf typically published one book for each clan, bloodline, creed, etc., for Wraith two guilds were often smashed into one book. Wikipedia says that more books were planned, but never published.

Why was Wraith cancelled early? Wikipedia also mentions it was nominated for some awards, and it seems like a fairly novel game in some regards. It has a unique character that really sets it apart. I haven’t played it, but reading the books doesn’t reveal anything telling – it seems to use the same system as other White Wolf games with some reskinning.

Things I’ve tried:

• I’ve tried asking the proprieters of my local game stores. They either don’t know anything, or remember that it sold poorly with no real explanation.
• I’ve asked around my local World of Darkness tables. Many of the oldbies were playing in the 1990’s, but none admit to having played the game. Their responses mostly came down to "everyone knows this game sucks", with no explanation of why.
• White Wolf advertised some listservs in its game books, but I haven’t been able to find archives of them.
• I’ve read some reviews of Wraith. Most of them are rather artistic or critical in nature, rather than something that I suspect reflects the real played experience of actual tables. Additionally, none of them describe the game’s failure or why it was cancelled.

So what happened? Why was Wraith cancelled?

## Cancellation of inequalities in floating point arithmetic

In finite precision floating point arithmetic the associative property of addition is not satisfied. This is, it is not always the case that $$(a+b)+c=a+(b+c)$$ Even $$a=(a+b)-b$$ is not always true.

To prove that $$x+y is equivalent to $$x with real numbers we can add $$-y$$ on both sides of $$x+y to get $$(x+y)-y and then from this $$x=x+(y-y). But I can’t repeat the last step for floating point.

Question: Are the inequalities $$x+y and $$x equivalent in finite precision floating point arithmetic?

## What to do if the primary action is actually to confirm a cancellation?

I’ll ignore the fact that it isn’t obvious what ‘20190927.6’ is from the screenshot (it would be more obvious in the workflow context).

Obviously someone is following the pattern that the primary button should be labelled clearly as the effective outcome – in this case, clicking on the primary button should result in ‘20190927.6’ being cancelled.

They’ve also included a secondary button which backs out of the process without making changes – labelled ‘Cancel’.

Luckily, there’s a design convention – so the blue button is probably the primary action, and the grey button is probably the secondary.

What would be a better way to label these buttons?

Given the ‘are you sure’ question, wouldn’t Yes/No buttons be good enough in this instance?

## xinput property ‘Synaptics Noise Cancellation’ doesn’t exist – Thinkpad x220 – jittery touchpad – ubuntu18.04.3

I just installed ubuntu on my thinkpad-x220 and my touchpad is extremely jittery / jumpy. If I don’t touch it my mouse stays still which is fine, but once I start moving my finger on the touchpad the mouse shakes and moves which is so annoying.

Apparently this is a well known issue, but I’m not having any luck using the recomended solution of xinput: http://x220.mcdonnelltech.com/ubuntu/#touchpad

When I run xinput I see this:

root@martin-ThinkPad-X220:~# xinput ⎡ Virtual core pointer                      id=2    [master pointer  (3)] ⎜   ↳ Virtual core XTEST pointer                id=4    [slave  pointer  (2)] ⎜   ↳ SynPS/2 Synaptics TouchPad                id=11   [slave  pointer  (2)] ⎜   ↳ TPPS/2 IBM TrackPoint                     id=12   [slave  pointer  (2)] ⎣ Virtual core keyboard                     id=3    [master keyboard (2)]     ↳ Virtual core XTEST keyboard               id=5    [slave  keyboard (3)]     ↳ Power Button                              id=6    [slave  keyboard (3)]     ↳ Video Bus                                 id=7    [slave  keyboard (3)]     ↳ Sleep Button                              id=8    [slave  keyboard (3)]     ↳ Integrated Camera: Integrated C           id=9    [slave  keyboard (3)]     ↳ AT Translated Set 2 keyboard              id=10   [slave  keyboard (3)]     ↳ ThinkPad Extra Buttons                    id=13   [slave  keyboard (3)] 

I run this command:

xinput --set-prop "SynPS/2 Synaptics TouchPad" "Synaptics Noise Cancellation" 20 20 

but get an error message saying:

root@martin-ThinkPad-X220:~# xinput --set-prop "SynPS/2 Synaptics TouchPad" "Synaptics Noise Cancellation" 20 20  property 'Synaptics Noise Cancellation' doesn't exist, you need to specify its type and format 

Hello,

I purchased a banner ad space on thursday i believe for a making money online opportunity, but I never saw any activity whatsoever in regards to the advertisement, nevertheless, i will no longer promote that company, therefore, I would like to know how do I cancel the ad and get a refund on my paypal account since the ad never started to run

Thanks,

Sanderson

## Trigonometric cancellation on the unit circle

Let $$z \in \mathbb{C}$$ with $$|z|=1$$ and $$z\ne 1$$. Now consider the sum $$S(N,p)=\sum_{k=0}^N k^p z^k,$$ for some positive integers $$N,p$$.

An immediate upper bound on $$|S(N,p)|$$ is $$|S(N,p)|\le C_1(p)N^{p+1},$$ for some constant $$C_1$$ depending only on $$p$$. I’m looking for a reference showing that accounting for the cancellation we have $$|S(N,p)|\le C_2(|1-z|,p)N^{p},$$ for some explicit constant $$C_2$$ depending only on $$p,|1-z|,$$ and monotonic decreasing in $$|1-z|$$.

It is possible to prove such a bound using $$\sum_{k=0}^n k^p z^k = \left(z \frac{d}{dz}\right)^p \frac{1-z^{N+1}}{1-z}$$, but since it’s surly known I’m hoping for a reference.

## Will I still be charged a cancellation fee from a hotel if I’ve already paid for my night in full?

I booked a night at a hotel on booking.com and have already paid the reservation in full which is £153. I can’t make it anymore due to a family emergency. The booking.com email said that I will have to pay a cancellation fee of £153 paid if there is a no show or I cancel. Does that apply if I have already paid for the hotel? It seems strange to pay the full amount of the hotel as cancellation fees if I have already paid for it.

## Shengan Visa Cancellation

Gents I Have a Shengan Visa issued by the Embassy of Norway valid from July 2018 to July 2019. I applied and received another Visa from July 2019 ( the 2nd day of previous Visa expiry date) until July 2020.

in a telephone conversation with the employee in the embassy , I was told (verbally) that the previous Visa is cancelled.

however I have noticed that : 1- No cancellation stamp was put on the Visa itself 2- No document was attached to the passport stating that the previous Valid Visa is Cancelled .

especially that I had a similar case in the past and the same embassy (in another Country) and there was no cancellation of the previous visa and no interruption of my stay in the Shangan Area when the 1st expired and the following visa started !!

My Question is : How can I get an accurate information about the visa status in order to avoid any complication with the Customs in any EU country within June

Thanks for help Regards

## Visa cancellation

If someone is leaving in Australia and their Visa got rejected just because someone complained about them in embassy What will be the solution to apply for the Visa again