r how to make matrix code example

Example 1: matrix in r

newMatrix = cbind(c(1,2,3),c(4,5,6))

Example 2: how to write a 10x10 matrix in rstudio

ranVal= sample(1:10,100,replace =T) #creating 10X10 with random values

M=matrix(ranVal,nrow=10)

print (M)