Wolfram Mathematica is a proprietary software and is not available for free download legally. However, there is a free version called Wolfram Engine that can be downloaded from the Wolfram website. This version allows users to run Mathematica code but does not include the full Mathematica interface or functionality. To access the full version of Wolfram Mathematica, a license must be purchased from Wolfram Research. **

There are several free alternatives to Mathematica, Matlab, Maple, etc. Some popular options include Octave, which is an open-source alternative to Matlab; Maxima, which is a free computer algebra system similar to Maple; and SageMath, which is a free open-source mathematics software system that can perform many of the functions of Mathematica and Maple. These alternatives provide similar functionalities to the paid software but are available for free to users. **

It can be worth it for a private individual to have a subscription to Mathematica if they frequently use the software for complex mathematical computations, data analysis, or visualization. Mathematica offers a wide range of features and capabilities that can be valuable for individuals working in fields such as engineering, physics, finance, and computer science. However, for individuals who only have occasional or basic mathematical needs, the cost of a subscription may not be justified. It ultimately depends on the individual's specific use case and how frequently they would utilize the advanced features of Mathematica. **

You can create a list of numbers in Mathematica whose digit sum is greater than or equal to 5 using the following code: ```mathematica Select[Range[100], Total[IntegerDigits[#]] >= 5 &] ``` This code uses the `Range` function to generate a list of numbers from 1 to 100, and then uses the `Select` function to filter out the numbers whose digit sum is less than 5. The `Total` function is used to calculate the digit sum of each number, and the `IntegerDigits` function is used to convert each number into a list of its digits. **

"Gesundheit" is a German word that means "health" or "bless you" when someone sneezes. It is commonly said in English-speaking countries after someone sneezes. There is no specific person who said "gesundheit," as it is a cultural practice that has been adopted over time. **

La palabra "gesundheit" es una expresión alemana que se utiliza para desearle salud a alguien después de que estornuda. No está asociada a una persona en particular, sino que es una expresión comúnmente utilizada en varios países de habla inglesa. **

Ausdauer 14 is a German term that translates to "endurance 14" in English. It refers to the ability to sustain prolonged physical or mental effort over a period of time. In the context of fitness or sports, Ausdauer 14 may refer to a specific training program or level of endurance that an athlete aims to achieve. Overall, Ausdauer 14 represents the capacity to persist and endure through challenges and obstacles. **

Ausdauer 17 is a German term that translates to "endurance 17" in English. It refers to the concept of having the stamina, perseverance, and resilience to endure and overcome challenges or obstacles. The number 17 may also have a specific significance in certain contexts, such as being a reference to a specific event, year, or milestone. Overall, Ausdauer 17 represents the ability to persist and push through difficulties with strength and determination. **