Dictionary:Cramer’s rule

From SEG Wiki
Jump to navigation Jump to search
ADVERTISEMENT
Other languages:


{{#category_index:C|Cramer’s rule}} (krā’ m∂rz) The solution to a set of linear equations in unknowns written compactly as

where


has solutions for each given by the ratio of determinants

where the matrix is obtained by replacing the -th column of the matrix with the vector b.


This is usually not the most economical way for computers to solve simultaneous equations. Named for Gabriel Cramer (1704–1752), French mathematician.