Question

***********************PLEASE DO NOT COPY AND PASTE OLD SOLUTIONS***************************

C++

Assignment Write a menu driven program with the following options

• to call a recursive function, which raise x to the power n
  • must work for negative n as well as positive n. ( x ^{− n} = 1/ x ⁿ )
  • ask a user for the values of x and n
• to call a recursive function to add the first n terms of the series 1+1/2+1/3...1/n
  • function output sample: 1+1/2+1/3+1/4+= 2.0833 should be printed from within the recursive function; do not create a separate function to print the series
• to call a recursive add the first n terms of the series 1/n +… 1/3 + 1/2 +1
  • function output sample 1/4 + 1/3 + 1/2 +1 =2.0833 should be printed from within the recursive function; do not create a separate function to print the series
• to quit

Guide Lines ******very important**********

• Ask a user for the values of n and x
• Validate all user inputs
• 
  NOs o No breaks except for switch statement o No abrupt termination of loops or ifs; no return or exits in while and ifs unless you cannot open a file or allocate memory dynamically o No while(1), while(true) or similar while (true) if (error) break; o No go to or continue o No redundant, repetitive code - create a function . Good user prompts. Please remember a user does not see your code . Error checking is required unless stipulated otherwise, especially if files and/or dynamic memory allocation is involved; use common sense - do not trust user or input file to do the right thing - In presentations, are on the same line as first and last statement of a block. No need to mimic location of < in presentations cout o usage of endl; endl is a manipulator and n' is char cout<< endl <<"Invalid entry. Please try again" << endl << endl; // quite wastefull; - cout <<"nInvalid entry. Please try again\n "<< endl; // better o usage of cout; cout is an object why call it when you do not have to //wasteful cout <<"1) Raise x to the power of n" << endl; cout <<"2) Add the first n terms of the series" << endl; cout <<"3) Add the first n terms of the series (reverse order)" << endl; cout <<"4) Quit" <<endl;
  
• $cout << 1) Raise x to the power of nn <<2) Add the first n terms of the series\n << 3) Add the first n terms of the seri$

Answer 1

#includec iostream> using namespace std float power(int x,int n); //Recursive function for power float suml(int x,int n); //Recursive function for sum float sum2(int x,int n); //Recursive function for sum int main int flag=1,a; //Set a FLAG=TRUE int x,n; while(flag)I/While TRUE coutss" Menu-Drivenll" //Menu-Driven cout<<" Enter: 1. Power 2. Sum 3. Sum Reverse" cout<<" Enter Your Choice: switch(a) case 1: //Case 1 for power cout<< Enter Base cout<< Enter Exponent:" cins>n cout<<" Base X, Power N: <power(x,n); break; case 2://Case 2 for Sum cout«<"Enter X : "; cout<<" Enter Number of Terms: " cout<<" Sum: <<suml(x,n)

break case 3: //Case 3 for Reverse Sum cout<s" Enter X:" cins>x, cout<<" Enter Number of Terms: " cins>n cout<< Sum "<<sum2(x,n); break default cout<" Wrong Choice!"; couts<" Do you want to input again?Yes 1,No 0 cin flag //Ask for FLAG modification float power(int x,int n) if(n-0) //Base Case When N-0 return 1; else if(n > 0) return xpower(x, n- 1); //Normal Rule for XAN else return 1/power(x, -n); //Calculate 1/XAN float sum2(int x,int n) if(n-1)//Base Case When N 1 return 1; else return (float)x/n+suml(x,n-1); //Calculation

Output: leo@leo-Aspire-ES-575 /Desktop (100%) 2:43AM Menu-Drtven . Power 3. Sun Reverse Enter Your choice: 1 Enter Base : Enter Exponent 3 Base x , Power N:8 Do you want to input agatn?Yes 1,No I IMenu-DrtvenlI 1- Power Sun Sun Reverse Enter Your chotce1 Enter Base: 2 Enter Exponent -3 Base x Power N8.125 Do you want to input again?Yes 1,No IIMenu-Driven|l a Enter: 1, Power

Base X , Power N : e-125 Do you want to input agein?Yes 1,No Menu-Driven 11 Enteri 2. Sun 3. Sun Reverse Enter Your Choice : 2 Enter x : 1 Enter Nunber of Terms: 4 sum2.0833 Do you want to input again Yes 1,No。 IIMenu-Drivenll 2. Sun Sun Reverse Enter Your Chotce: 3 Enter x :1 Enter Nunber of Terns 4 Sun 2.08333 Do you want to input agatn?Yes 1,No 8 leogleo-Aspire-Es-575:-/Desktops I