infinitesimaalseid
Infinitesimaalseid, often translated as infinitesimals, are quantities that are infinitely small but not zero. Historically, they were a foundational concept in the development of calculus, particularly by Gottfried Wilhelm Leibniz. Infinitesimals were used to represent the "infinitely small changes" in variables, such as dy and dx, which were then used in the process of differentiation and integration.
The intuitive use of infinitesimals allowed mathematicians to perform calculations that seemed to work, even though
In modern mathematics, the concept of infinitesimals has been rigorously formalized. Non-standard analysis, developed by Abraham