| solve.tridiag {tis} | R Documentation |
Solve a Tridiagonal System of Equations
Description
This function solves the equation a %*% x = b for x,
where a is tridiagonal and b can be either a vector or a
matrix.
Usage
## S3 method for class 'tridiag'
solve(a, b, ...)
Arguments
a |
a tridiag object: a square tridiagonal (all zeroes
except for the main diagonal and the diagonals immediately above and
below it) matrix containing the coefficients of the linear system.
|
b |
a vector or matrix giving the right-hand side(s) of the
linear system. If missing, b is taken to be an identity matrix
and the function will return the inverse of a.
|
... |
ignored
|
Details
Uses the LINPACK dgtsv routine.
See Also
solve
[Package
tis version 1.30
Index]