Write a user-defined MATLAB function that calculates the determinant of a 3 3 matrix by using

Write a user-defined MATLAB function that calculates the determinant of a 3 × 3 matrix by using the formula:

For the function name and arguments, use d3 = det3by3 (A), where the input argument A is the matrix and the output argument d3 is the value of the determinant. Write the code of det3by3 such that it has a subfunction that calculates the 2 × 2 determinant. Use det3by3 for calculating the determinants of:
(a)

(b)

Transcribed Image Text:

+A 21 422 A31 A32 A22 A 23 4 A21 A23 A13 A31 433 22 23 249 167 2.5 7 1 5 -3-.6 4 2 -1 2