- #1

hoffmann

- 70

- 0

find the critical points of:

P = [tex](x_{1} - 1)^{2} + (x_{n})^{2} + \sum(x_{k+1} - x_{k})[/tex]

the bounds of the sum are from i = 1 to n-1.

so i differentiate P with respect to x and i set it equal to zero, and i eventually get the expression:

[tex]\sum(x_{k+1} - x_{k}) = 1 - x_{1} - x_{n}[/tex]

what do i do from here / how do i differentiate the summation notation?

thanks!