Dear R-user, May I seek your help, please. I have two matrices, u and v, elements of which are some functions of x. I just want to multiply them and express the determinant of the resulting matrix as a function of x and of course, this is for some reason. Actually the original problem has more matrices to multiply and I'm just wondering whether I can simplify it anyway through the R codes. It may even be non-sense, but just want to hear from you. The below is the code.
--------------------------------------------------------------------------------------------- f1<-function(x) {x} f2<-function(x) {x^2} f3<-function(x) {x^3} f4<-function(x) {x^4} f5<-function(x) {x^2+7} f6<-function(x) {x^3+14*x} f7<-function(x) {x^2+2*x} f8<-function(x) {x^4+10*x} u<-matrix(c(f1,f2,f3,f4), nrow=2, ncol=2, byrow=TRUE) v<-matrix(c(f5,f6,f7,f8), nrow=2, ncol=2, byrow=TRUE) det(u %*% v) # Is that possible? ------------------------------------------------------------------------------------------------ Any suggestion will be more than great! Regards, Jamil. [[alternative HTML version deleted]] ______________________________________________ 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.