Problem 1323. Alternating sum

   y = x(1) - x(2) + x(3) - x(4) + ...

Solution Comments

Problem Recent Solvers854

Suggested Problems

• Get the area codes from a list of phone numbers

  1075 Solvers

• surrounded matrix

  1459 Solvers

• Sum of first n positive integers

  624 Solvers

• Triangle sequence

  5915 Solvers

• Sum of series I

  2277 Solvers

More from this Author11

• Conic equation

  23 Solvers

• Pascal's pyramid

  137 Solvers

• Mean ignoring NaNs

  52 Solvers

• Mystery problem

  14 Solvers

• Procrustean bed

  58 Solvers