So few mathematicians know about linear optimization because it is a specialized area within the broader field of mathematics. Linear optimization involves solving complex mathematical problems using linear programming techniques, which may not be widely covered in standard mathematics curricula. Additionally, linear optimization is often taught at the graduate level, so many mathematicians may not have been exposed to it during their undergraduate studies. Furthermore, the application of linear optimization is more prevalent in specific fields such as operations research, economics, and engineering, which may limit its exposure to mathematicians in other areas of study. **

There could be several reasons why DHL does not know the tracking number. It is possible that the tracking number was not entered correctly into their system, or there may have been a delay in updating the tracking information. Another possibility is that the package has not been scanned at a DHL facility yet, so the tracking number is not yet associated with their system. It is also possible that the package was shipped using a different carrier and not DHL, which is why they do not have record of the tracking number. **

DHL may not know the tracking number if it was not provided by the sender or if there was an error in the system that prevented the tracking number from being generated or recorded. Additionally, if the package was not shipped through DHL or if there was a delay in updating the tracking information, DHL may not have the tracking number on file. It is important to contact the sender or DHL customer service for assistance in locating the tracking number. **

Yes, there are several good tracking courses available online and in-person. Some popular options include the Cybersecurity and Infrastructure Security Agency (CISA) Certified Information Systems Auditor (CISA) certification, the Certified Information Security Manager (CISM) certification, and the Certified Ethical Hacker (CEH) certification. These courses cover a range of topics related to tracking, including network security, incident response, and ethical hacking techniques. It's important to research each course to find the best fit for your specific tracking needs and goals. **

There is no specific information available about the tracking watch Fritz Meinecke uses. It is possible that he has not publicly disclosed the brand or model of his tracking watch. If you are interested in knowing more about his tracking watch, you may consider reaching out to him directly through his social media channels or website for more information. **

The tracking number for your AliExpress order can typically be found in the order details or shipment confirmation email. Once your order has been shipped, you should receive an email with the tracking number and a link to track your package. If you can't find the tracking number, you can also go to your AliExpress account, find the order in your order history, and the tracking number should be listed there. If you're still having trouble, you can reach out to the seller or AliExpress customer service for assistance. **

The tracking number for Hermes can typically be found on the shipping confirmation email or on the retailer's website where the order was placed. If the tracking number is not readily available, the customer can contact the retailer or Hermes customer service to obtain the tracking information. It is important to have the order number and any relevant details ready when reaching out for assistance. **

The courier company associated with a tracking number can typically be identified by entering the tracking number into the courier company's website or app. Alternatively, the sender of the package should be able to provide information on which courier company was used for the shipment. If the tracking number was provided by a third party, such as a seller on an online marketplace, it may be helpful to contact them directly to inquire about the courier company associated with the tracking number. **