Root (Mathematics)

A root in mathematics is a value of x such that a function f(x)=0:

Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle x : f(x) = 0\,}

Polynomials have finitely many roots, while the exponential function has none.