Chapter 3, Problem 22P

To determine

(a)

The authenticity of the statement “Sum of the infinite series ${\displaystyle \sum _{n=0}^{\infty }\frac{2^n}{n!}}$ converges to $e^2$ ” using MATLAB; a vector $n$ in which the first element is $0$, the increment is $1$ and the last term is $5$; a vector in which the elements are $\frac{2^n}{n!}$ using element-by-element calculations and MATLAB’s built-in function $\text{sum}$ to sum the series; the comparison of these values to $e^2$. (use format long to display the numbers.)

To determine

(b)

The authenticity of the statement “Sum of the infinite series ${\displaystyle \sum _{n=0}^{\infty }\frac{2^n}{n!}}$ converges to $e^2$ ” using MATLAB; a vector $n$ in which the first element is $0$, the increment is $1$ and the last term is $10$; a vector in which the elements are $\frac{2^n}{n!}$ using element-by-element calculations and MATLAB’s built-in function $\text{sum}$ to sum the series; the comparison of these values to $e^2$. (use format long to display the numbers.)

To determine

(c)

The authenticity of the statement “Sum of the infinite series ${\displaystyle \sum _{n=0}^{\infty }\frac{2^n}{n!}}$ converges to $e^2$ ” using MATLAB; a vector $n$ in which the first element is $0$, the increment is $1$ and the last term is $50$; a vector in which the elements are $\frac{2^n}{n!}$ using element-by-element calculations and MATLAB’s built-in function $\text{sum}$ to sum the series; the comparison of these values to $e^2$. (use format long to display the numbers.)