CPM Homework Help : PC Problem 2-60

Calculator Karlie was trying to adjust her calculator program to evaluate a different summation than the first one she did on the calculator. If the sum Calculator Karlie is trying to find is $\displaystyle \sum _ { k = 2 } ^ { 7 } ( k + 1 ) ^ { 2 }$ , explain how to change the index and the equation so she can run her program.

Answer:

Change $\text{Y}\small1$ to $(k+1)^2$ , the starting index to $\text{B}=2$ (or $2→\text{X}$ ), and the end index to $\text{E}=7$ (or $\text{X}\le7$ ).