Before revision: 60–67 In surveying In surveying work,Glossary of the Mapping Sciences, American Society of Civil Engineers, page 451. the most common methods of computing the coordinates of a point by (angular) resection are the John Collin's "Q" point Method as well as the Cassini's Method and the Tienstra formula, though the first known solution was given by Willebrord van Snell aka "Snellius" (see Snellius–Pothenot problem).
After revision: Collins60–67 In surveying In surveying work,Glossary of the Mapping Sciences, American Society of Civil Engineers, page 451. the most common methods of computing the coordinates of a point by (angular) resection are the John Collin's "Q" point Method as well as the Cassini's Method and the Tienstra formula, though the first known solution was given by Willebrord van Snell aka "Snellius" (see Snellius–Pothenot problem).