Examine exponential function:

The algorithm for the main script program is shown below:

•  Call a function eoption to show the menu and return the user's choice.
•  Loop until the user selects to exit the program. If the user has not selected to exit, the action of the loop, based on the user's preference, either is to:

- Call the function explaine to print a description of e

- Call the function limite which will prompt the user for n and compute an approximate value for e

- Prompt the user for x and call the function expfn which will print both an approximate value for e^x and the value of the built-in exp(x). (Note: Any value for x is satisfactory; therefore the program does not require to error-check this value.)

•  Call the function eoption to show the menu and return the user's choice again.