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Wait online. What software can I use to find the answer to college calculus?
1.wolfram alpha

The most professional calculus search app, but it is paid and it is in English, not Chinese, so be careful.

Quick answer

No money, no money, no money (three or three) Looking for the answer artifact, you can see a high number of answers on the home page. College students must have an app, and directly choose textbooks to search for questions, which is efficient and loves it.

Limit theory:

Since17th century, the concepts and skills of calculus have been continuously expanded and widely used to solve various practical problems in astronomy and physics, and great achievements have been made. But until19th century, in the development of calculus, the rigor of its mathematical analysis has not been solved.

In the eighteenth century, many great mathematicians, including Newton and Leibniz, realized this problem and tried to solve it, but they failed to solve it successfully.

Throughout the18th century, the foundation of calculus was confusing. Many British mathematicians may still be bound by the geometry of ancient Greece, so they doubt all the work of calculus.

This problem was not completely solved by French mathematician Cauchy until the second half of the19th century. Cauchy's limit existence criterion injects rigor into calculus and is the basis of limit theory. The establishment of limit theory makes calculus based on strict analysis, which also laid the foundation for the development of mathematics in the 20th century.