Through sum of reciprocal of factorials " e " can be calculated like this: kk=0k21 Through Exponential and logarithm series you can calculate "In" like: k=0(2k+1)(2k+2)1 Note: These series approximate the answer as they go towards infinity. We will limit " k " to a value that is entered by user. Therefore, calculation will stop at that value. Your task for this question is to write a C++ program which calculates "In" or " e " depending on the user's wish, with 3 functions. The prototypes for the functions is like below: double calcestep (int k ) ; double calclnstep (int k); double chooseEorLn (double (*func) (int), int k); You cannot change or add parameters to these functions. Also, you don't need to use any extra functions. In your main function take " k " value from user and call the chooseEor LN function twice. First to calculate " e " to the " k " and second to calculate " ln " to the " k ". Hint: Common parts of the equations and function names are your hints. Highlighted parameter is a function pointer