Question: Which German mathematicianwho contributed significantly to many fields, including number theory, algebra, statistics, analysis, differential geometry, geodesy, geophysics, mechanics, electrostatics, magnetic fields, astronomy, matrix theory, and optics is the namesake of the Gauss-Seidel method in linear algebra?
Sentence (from "Gauss–Seidel method"): It was only mentioned in a private letter from Gauss to his student Gerling in 1823.
Relevant evidence: No