Problem 459. Sum of diagonal of a square matrix

 x = [1 2 4; 3 4 5; 5 6 7]

 y = 1 + 4 + 7 = 12

Solution Comments

Problem Recent Solvers1640

Suggested Problems

• Determine whether a vector is monotonically increasing

  23289 Solvers

• Given a window, how many subsets of a vector sum positive

  873 Solvers

• Set some matrix elements to zero

  634 Solvers

• Sum of series III

  1847 Solvers

• Vector creation

  11170 Solvers

More from this Author1

• Replace May with April

  395 Solvers