Frank Barknecht <fbar at footils.org> writes: > expr if ( $f1 > 0, 1/$f1, pow($f1, 2) ) Yes. However, I was not clear in my previous post. I was refering to [expr~] using signal vectors and such. And back then I was really paranoid about CPU usage because of the slow machine and I was willing to try just about anything to save 1% of CPU. ./MiS