The 1. fractional line is a small horizontal line used to represent a fraction, which usually appears with the numerator and denominator. In mathematics, a fractional line can be regarded as a division symbol, and its symbol is "/". For example, one half can be expressed as 1/2, and two thirds can be expressed as 2/3.
2. In addition to mathematics, scores will also appear in other fields. For example, in chemistry, fractional lines are used to indicate the proportional relationship of chemical reactions. In music, fractional lines are used to represent notes and rhythms in musical works.
How to use horizontal lines in different places
1. When modifying articles or records, we usually cross out unnecessary words or sentences with horizontal lines. This can highlight the contents that need to be preserved more clearly and make the modification process cleaner. When crossing out words, you should pay attention to the length of the horizontal line to be consistent with the length of the deleted word or sentence to avoid ambiguity.
When reading or studying, we often need to mark the key content. At this time, you can mark it with a horizontal line under the relevant content. The key content of labeling can be important concepts, key sentences or details that need special attention. By marking the key points, it is more convenient to review and review related knowledge.
3. When you need to emphasize a paragraph of text or sentence, you can use thick horizontal lines to emphasize it. This kind of emphasis can attract readers' attention and make the key content more prominent. At the same time, when using thick horizontal lines to emphasize words, be careful not to add horizontal lines in the whole paragraph or sentence, so as not to affect the reading effect.
4. When making a table, you can use horizontal lines to divide the table into different areas, so as to clearly present data and information. At the same time, when you need to emphasize some data in the table, you can also use horizontal lines to mark or bold. By making tables, data and information can be displayed more intuitively, which is convenient for comparative analysis.
5. When drawing graphics, you can draw some simple graphic elements with horizontal lines, such as horizontal lines, parallel lines and vertical lines. These simple graphic elements can be used to help draw more complex graphics or patterns. At the same time, when drawing a graph, we should pay attention to the accuracy of the length, angle and position of the horizontal line to ensure the accuracy and aesthetics of the graph.