R Matrix operations

matrix_operations.R

# Vector operations
a = c(333135, 19890804, 894, 478618, 2112)
b = a * 2
c = b / 3
d = c + a^2
e = sqrt(d)

# Reverse matrix
ai = rev(a)


# Matrix operations
m1 = matrix(data = a, nrow = 5, ncol = 6, byrow = F)

m2 = matrix(data = a, nrow = 6, ncol = 5, byrow = F)

m3 = m1 * 0.1

# matrix from data.frames

m4 = as.matrix(attitude[1:5, 1:6])

# Matrix multiplication
m5 = m1 * m3
m7 = m1 %*% m4

# Matrix trans
m1t = t(m1)

# Diagonal Matrix
diag(c(1,2,3,4))

# Solve Matrix
?solve