If E is a matrix, a matrix in reduced row echelon form is returned.
If E is an editmatrix the equality part of E is transformed
to reduced row echelon form. For an editset, the numerical part is
transformed to reduced row echelon form.
echelon(E, ...)# S3 method for editmatrix
echelon(E, ...)
# S3 method for matrix
echelon(E, tol = sqrt(.Machine$double.eps), ...)
# S3 method for editset
echelon(E, ...)
a matrix or editmatrix
options to pass on to further methods.
tolerance that will be used to determine if a coefficient equals zero.
eliminate, substValue