At the same time, it also reflects a directional relationship, the relationship between before D and after D, and the movement from D to D is differential, and vice versa. This positional relationship can reflect the reciprocal operation of integral and differential.
The symbol of integral is, which is used to represent integral in mathematics. This symbol was used by German mathematician gottfried leibniz at the end of 17. What is the shape of this symbol based on? (long s) characters, and related symbols include? (double integral),? (triple integral), ∮ (curve integral),? (area points), and? (volume)
Typesetting methods of integer symbols in different languages;
In different languages, the shapes of integer symbols are slightly different.
1. In English mathematics literature and textbooks, integer symbols are tilted to the right.
2. In German mathematical literature, integer symbols remain vertical.
3. In Russian mathematical literature, integer symbols are tilted to the left.