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...ter shutdown with delay command (seconds) Type: RANGE NUMBER Option: "12-540" SELECTED [ups.delay.start] Interval to wait before (re)starting the load (seconds)Type: RANGE NUMBER Option: "60-599940" SELECTED I have tested the shutdown sequence. Here is the website:https://www.powermatic.co.th/product/l-series/ The website is in Thai, but Google Translate does a pretty good job of translating the site to English Cheers, Arnold Troeger Sent with[Proton Mail](https://proton.me/mail/home)secure email. Cheers, Arnold Troeger Sent with [Proton Mail](https://proton.me/mail/home) secu...

Hi, I want find all roots for the following polynomial : a <- c(-0.07, 0.17); b <- c(1, -4); cc <- matrix(c(0.24, 0.00, -0.08, -0.31), 2); d <- matrix(c(0, 0, -0.13, -0.37), 2); e <- matrix(c(0.2, 0, -0.06, -0.34), 2) A1 <- diag(2) + a %*% t(b) + cc; A2 <- -cc + d; A3 <- -d + e; A4 <- -e fn <- function(z) { y <- diag(2) - A1*z - A2*z^2 - A3*z^3 - A4*z^4