Find the Determinant of a 2 x 2 Matrix

Doing the computations by hand, find the determinant of the matrix below.

[1 3]

[2 6]

InpMtrx <- c(1, 3, 2, 6)
Determtrx <- matrix(InpMtrx, nrow = 2, ncol = 2)
print(det(Determtrx))

## [1] 0