# Question: Use the coding of Exercise 14 15 to rework both parts

Use the coding of Exercise 14.15 to rework both parts of Exercise 14.45.

In exercise

When the x’s are equally spaced, the calculation of and can be simplified by coding the x’s by assigning them the values . . . ,- 3,- 2,- 1, 0, 1, 2, 3, . . . when n is odd, or the values . . . ,- 5,- 3,- 1, 1, 3, 5, . . . when n is even. Show that with this coding the formulas for and become

In exercise

When the x’s are equally spaced, the calculation of and can be simplified by coding the x’s by assigning them the values . . . ,- 3,- 2,- 1, 0, 1, 2, 3, . . . when n is odd, or the values . . . ,- 5,- 3,- 1, 1, 3, 5, . . . when n is even. Show that with this coding the formulas for and become

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