What is another word for principal diagonal?
Pronunciation: [pɹˈɪnsɪpə͡l da͡ɪˈaɡənə͡l] (IPA) 
The "principal diagonal" of a matrix refers to the set of elements from the top left corner to the bottom right corner. There are several synonyms for this term, including "main diagonal," "leading diagonal," "primary diagonal," and "diagonal principal." Each of these terms conveys the same meaning and can be used interchangeably in mathematical or technical contexts. However, it is important to note that some fields or regions may have a preference for certain synonyms over others. Overall, understanding the different ways to refer to the principal diagonal can enhance clarity and communication in technical discussions.
