MArray = array(c(vec1, vec2), dim)

# Create two vectors of different lengths.
vector1 <- c(5, 9, 3)
vector2 <- c(10, 11, 12, 13, 14, 15)
  
# Take these vectors as input to the array.
result <- array(c(vector1, vector2), dim = c(3, 3, 2))
print(result)

, , 1

     [,1] [,2] [,3]
[1,]    5   10   13
[2,]    9   11   14
[3,]    3   12   15

, , 2

     [,1] [,2] [,3]
[1,]    5   10   13
[2,]    9   11   14
[3,]    3   12   15

# Create two vectors of different lengths.
vector1 <- c(5, 9, 3)
vector2 <- c(10, 11, 12, 13, 14, 15)
column.names <- c("COL1", "COL2", "COL3")
row.names <- c("ROW1", "ROW2", "ROW3")
matrix.names <- c("Matrix1", "Matrix2")
  
# Take these vectors as input to the array.
result <- array(c(vector1, vector2), dim = c(3, 3, 2),
                  dimnames = list(row.names, column.names,
                  matrix.names))
print(result)

, , Matrix1

     COL1 COL2 COL3
ROW1    5   10   13
ROW2    9   11   14
ROW3    3   12   15

, , Matrix2

     COL1 COL2 COL3
ROW1    5   10   13
ROW2    9   11   14
ROW3    3   12   15

# Create two vectors of different lengths.
vector1 <- c(5, 9, 3)
vector2 <- c(10, 11, 12, 13, 14, 15)
  
# Take these vectors as input to the array.
array1 <- array(c(vector1, vector2), dim = c(3, 3, 2))
  
# Create two vectors of different lengths.
vector3 <- c(9, 1, 0)
vector4 <- c(6, 0, 11, 3, 14, 1, 2, 6, 9)
array2 <- array(c(vector1, vector2), dim = c(3, 3, 2))
  
# create matrices from these arrays.
matrix1 <- array1[,,2]
matrix2 <- array2[,,2]
  
# Add the matrices.
result <- matrix1 + matrix2
print(result)

     [,1] [,2] [,3]
[1,]   10   20   26
[2,]   18   22   28
[3,]    6   24   30