Certain thumbnails extend on the main page and the product page.

The thumbnails of certain products are stretched to fit the preview window on the product page, does anyone know why this happens? However, most miniatures are fine.

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RackNerd – New product line! Shared hosting and reseller! Together with the KVM plans at flash sales prices!

RackNerd sent another great offer to the community. This is what they had to say about their products, in their own words:
"As part of our ongoing commitment to expansion, we have introduced a new line of" shared and reseller "hosting products with competitive but sustainable rates, most providers have switched to DirectAdmin as a result of cPanel price increases.
We have managed to maintain our shared and reseller hosting services based on the popular and highly desirable cPanel / WHM platform, while supporting those interested in the DirectAdmin platform by offering them customized solutions in our VPS product line.

DC02 is one of RackNerd's presence points in the heart of downtown Los Angeles, with incredible network connectivity for both the US. UU. As for China: many customers have trusted RackNerd and have provided many positive comments about the performance and reliability of this location. "

See their numerous offers below, shared and reseller hosting and KVM plans! They are also delivering free RackNerd pens to anyone ordering and opening a ticket requesting that one be sent (must be based in the US)

Your WHOIS is public and you can find your ToS / Legal Documents here. They accept PayPal, credit cards, Alipay, Bitcoin, WeChat Pay, UnionPay, Amazon Pay and Ticket as payment methods.

As always, if you order from them, we encourage our readers to share their thoughts below in the comments section.

This is what they had to say about their company:

“RackNerd presents infrastructure stability and provides dedicated servers, private cloud solutions, DRaaS (disaster recovery as a service), flexible placement, virtual private servers and advanced DDoS mitigation services, maintained by a team with decades of experience in managed services , data center operations and infrastructure as a service. With an intrinsic focus on customer success and growth, RackNerd has grown steadily while continuing to offer high quality hosting services at competitive prices. "

Here are their offers:


  • 20 GB of SSD disk space
  • 1 TB monthly transfer
  • Unlimited databases
  • 2 domains
  • Free SSL certificates
  • CloudLinux Powered
  • Softaculous script installer
  • LiteSpeed ​​web server
  • Free daily backups included
  • CPanel control panel
  • Price: $ 7 / year


  • 120 GB of SSD disk space
  • 3 TB monthly transfer
  • 35 cPanel accounts
  • Free SSL certificates
  • CloudLinux Powered
  • Softaculous script installer
  • LiteSpeed ​​web server
  • Free daily backups included
  • CPanel and WHM control panel
  • Price: $ 45 / year


  • 2x vCPU cores
  • RAID-10 storage in 20 GB SSD cache
  • 1.5 GB of RAM
  • 5500GB monthly premium bandwidth
  • 1 Gbps public network port
  • Full root administrator access
  • 1 dedicated IPv4 address
  • KVM / SolusVM control panel: restart, reinstall, rDNS administration and much more
  • LOCATION: Los Angeles
  • ONLY $ 19.50 / YEAR!


  • 3x vCPU cores
  • RAID-10 storage in 40 GB SSD cache
  • 2.5 GB of RAM
  • 6500 GB monthly premium bandwidth
  • 1 Gbps public network port
  • Full root administrator access
  • 1 dedicated IPv4 address
  • KVM / SolusVM control panel: restart, reinstall, rDNS administration and much more
  • LOCATION: Los Angeles
  • ONLY $ 25.80 / YEAR – WOW!


Aon Center Building (RackNerd DC-02) – Los Angeles, CA, United States

IPv4 test:

Test file: http://lg-lax02.racknerd.com/1000MB.test

Host node specifications:

Shared and reseller hosting nodes

– Intel Xeon E3

– 32 GB of RAM

– 4x 1TB Enterprise SSD

– LSI Hardware RAID10

– Dual 1 Gbps uplinks

KVM VPS nodes

– 2x Intel Xeon E5-2690

– 256 GB of RAM

– 4x 4TB Enterprise HDD

– LSI Hardware RAID10 with SSD caching

– Dual 1 Gbps uplinks

Let us know if you have any questions / comments and enjoy!

ux field – UX vs Product design, what's the difference?

Trends …

There has been a positive overall trend in the last 15 years to designers to take on a growing reach of responsibilities within the product development process

15 years ago, in the "Microsoft" era of formal software development, human-computer interaction, visual design or information architecture were specific disciplines in design, and the products were delivered to specialists in these disciplines at formal points in the development process.

Since then, the trend has been get away from specializations and allow designers to influence and direct increasingly wide-ranging circles in the development process. This has resulted in broader disciplines such as the UX design, as the following diagram shows:

(click to enlarge)
designer roles

Some drivers of this trend:

  • The promulgation of design thinking as a paradigm for the integral development of products, not just the "design phase" work.
  • The incredible success of design-led companies such as Apple, Dyson, Nest and others, which has shown the business world how successful design-based development can be.
  • The flattening of the development process by frameworks such as Agile and Lean, which leads designers and other team members to work more functionally with broader areas of responsibility.
  • …and so.

Product design …

… is just another term, but it is also an almost predictable evolution / variant of the user experience. It represents the next extension of the design scope, far from the design of the user experience towards an even broader design mandate for a complete product.

This may include some or all of the bubbles in the previous diagram: a product designer can work not only on creating a user experience, but also on functional ergonomics, technical design, marketing approach, etc.

Keep in mind that these terms are blurred, but confusion does not mean that the term makes no sense. When it is understood in the context of how a term evolves, it is easier to understand why it is being used and what it is intended to communicate and differentiate.

Companies will use the term & # 39; Product designer & # 39; differently, but keep in mind that:

  • Something blurry in the definition does not make a word unusable or useless (think about how confusing the meaning of the word is F**k It really is, but it's still very useful =). The term & # 39; Product designer & # 39; It has value because it communicates a differentiated scope of design responsibility.

  • Even if a Product Designer does not have a broad scope of responsibilities for a particular company, the use of the term can still be valuable for the company because it can communicate a commitment or an aspiration to product development led by design.

I hope that helps.

Magento2: Remove the product from the cart after 10 minutes

I want to increase the guest cart session. Please let me know how it is possible.

magento2 – Product page not found after the migration from Magento to Magento 2.3.4

After successfully migrating from Magento to Magento 2.3.4, I tried to verify the category page, first it doesn't show any products, then I deactivated the MSI modules and then it shows the products in the category. After that I tried to click on one of the products on the category page, but it shows:

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I already tried truncating the following tables, then ran reindex:


but nothing works, I already tried to disable the url category and then reindex, but nothing works.

Here is my view of database tables:

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Product of orthogonal projection matrices with positive semidefinite matrix

Recently I came across this following claim about projection matrices, which I am not sure is true. However, it seems that I cannot find a valid counterexample.

Leave $ U in mathbb {R} ^ {n times k} $ be a rectangular matrix of full column range where $ k <n $. Define the projection matrix. $ P_U = U (U ^ TU) ^ – 1 U ^ T $. Now leave $ M in mathbb {R} ^ {n times n} $ be a matrix of positive semi-defined range $ k <n $. The claim is that:
(I-P_U) MP_U neq mathbf {0}

Where $ mathbf {0} $ it's the zero matrix, yes $ MP_U, (I-P_U) M neq mathbf {0} $.

The claim is clearly false if we allow $ k = n $ how $ M = I $ It would be a valid counterexample. However, it seems that I cannot find a valid counterexample for $ k <n $.

I appreciate any ideas / thoughts on this matter.

woocommerce – Web Scraping to automatically update product data

I have a WordPress price comparison website for membership purposes. I use WoocCommerce to store and update product data. Currently, I use a Python script with Selenium on my PC to scrape the prices of products from different websites. This creates a CSV file that I then manually import into WooCommerce to update the product data. I am looking for a solution whereby scraping can be done automatically, for example, every hour in the cloud / on a server and then automatically update WooCommerce product data and finally publish the changes. All this without having my PC turned on and avoiding any manual intervention. Essentially, I am trying to create a "live" price comparison website.

Please, can anyone point me in the right direction what are the options on how to do this? I am really struggling to know where to start, and I am happy to explore any feasible option.

More detailed breakdown of the necessary steps:

Step 1. Scrape the price of a website

Step 2. Update the Regular Price field in WooCommerce

Step 3. Using this price, perform a calculation to calculate, p. price per kg The kg of dough is already in a custom WooCommerce field and does not change, so the automated process would need to use the dough to perform the calculation.

Step 4. Update the custom WooCommerce "price per kg" field.

Thanks in advance,


magento2 – Inconsistent product URL

I am facing a problem in Magento 2.2.0 and Unero Theme 1.3.2 where there are products that have a URL like:


and the others are:


I am checking the condition of the SEO configuration in the catalog configuration, but I think it is already correct in the store view level configuration.

SEO Store View Settings

And this is the SEO configuration in the catalog -> product itself
SEO product configurations

I am currently in the initial state of development and learning of Magento programming. Do you need code modification in the kernel / topic? Or is there something wrong with the configuration?

The expected result is the second where there is .html in the product URL

php – Switch between product template view based on woocommerce user selection

I use woocommmerce and I have two template views for products (content-product.php) and (contentcarousel-product.php). in (archive-product.php) by default shows the first template like this

I created two buttons like this one with onclick event with javascrip

I want the first template to be displayed when you click on button 1 and when you click on button 2, the second template is displayed.

How can I do this with javascript and php

The closed set in the product topology implies the convergence of monotonic sequences

Leave $ (X, succsim) $ be a topological space totally ordered and connected with the order topology. Leave $ succeq $ be another order relationship in $ X times X $ such that the two orders are consistent: $ x succsim y iff (x, z) succeq (y, z) $ for all $ z $. We also assume the continuity of $ succeq $, that's the set {$ (x, y, w, z) in X times X times X times X: (x, y) succeq (w, z) $} is closed in the product topology.

Yes $ (x_n) _n $, $ (y_n) _n $ converge monotonously to $ x $ Y $ and $ respectively, and $ (w_n) _n $, $ (z_n) _n $ converge monotonously to $ w $ Y $ z $ respectively, then I want to show $ (x_n, y_n) succeq (w_n, z_n) implies (x, y) succeq (w, z) $.

To me, the problem seems quite trivial by definition and my test is as follows:

Denote the set $ A: = $ {$ (x, y, w, z) in X times X times X times X: (x, y) succeq (w, z) $} and choose a sequence of points in it (keep in mind that whenever $ X $ is metrizable $ A $ retains all the "good" properties of $ X $), that is to choose $ (x_n, y_n, w_n, z_n) _n in A ^ { mathbb {N}} $ converging monotonously to $ (x, y, w, z) $that is to say
$ (x_n) _n rightarrow x $, $ (y_n) _n rightarrow and $, $ (w_n) _n rightarrow w $, $ (z_n) _n rightarrow z $. So I want to show that $ (x, y, w, z) in A $. While $ A $ It is closed (of course) the conclusion follows. Am I missing something? It seems very easy. Besides, it seems to me that I don't even need the "monotonic" convergence of the sequence. Thank you!