Source: wikibot/branch-point
= Branch point
{wiki=Branch_point}
A branch point is a concept primarily associated with complex analysis and algebraic geometry. Here are two contexts in which the term is commonly used: 1. **Complex Analysis**: In the context of complex functions, a branch point is a point where a multi-valued function (like the square root function or logarithm) is not single-valued. For example, consider the complex logarithm \\( f(z) = \\log(z) \\).