This is the 4071st most frequent German word.
xi
"Xi" is not a standard German word; it is the 14th letter of the Greek alphabet.
In this math-related context, 'xi' refers to a variable name often used to represent unknowns or members of a set in mathematical equations.
Die Variable xi wurde in der Gleichung verwendet.
The variable xi was used in the equation.
Here, 'xi' indicates a specific Greek letter (ξ) commonly used in formulas or scientific contexts.
Ich habe das Symbol xi in diesem wissenschaftlichen Artikel gesehen.
I saw the symbol xi in this scientific article.
In this geographical usage, 'Xi' refers to a proper noun, particularly the name of one of the rivers in China.