Hi, backsolve() is probably what you are looking for.
Martyn -----Original Message----- From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On Behalf Of Michael Meyer Sent: 03 December 2013 12:25 To: r-help@r-project.org Subject: [R] triangular matrix inverse Greetings, is there an algorithm which computes the inverse of a triangular matrix while being aware of its triangular form? I know about solve() but this is probably not efficient on a triangular matrix. Thanks, Michael Meyer [[alternative HTML version deleted]] ________________________________________________________________________ The Numerical Algorithms Group Ltd is a company registered in England and Wales with company number 1249803. The registered office is: Wilkinson House, Jordan Hill Road, Oxford OX2 8DR, United Kingdom. This e-mail has been scanned for all viruses by Star. Th...{{dropped:4}} ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
