symbolic matrix multiplication by Ryacas
问题 I define two matrices mat1 and mat2 in Sym class which is suitable for Ryacas symbolic computation: library(Ryacas) x <- Sym("x") mat1 <- List( List(x, 2), List(x^3, x)) and mat2 <- List( List(x, x), List(3, 6 * x)) now the question is how I can have the symbolic multiplication of these two matrices by Ryacas package? Thank you in advance. 回答1: Try this: > mat1 * mat2 expression(list(list(x^2 + 6, x^2 + 12 * x), list(x^4 + 3 * x, x^4 + 6 * x^2))) 来源： https://stackoverflow.com/questions