❓ Help C++ Calculator

[alnlm]

UPDATE: Okay na pala hahaha salamat

#include <iostream>

#include <cmath>

using namespace std;



int main() {

  int choice; float num;

  cout<<" select something\n";

  cout<<"\n";

  cout<<"1) Add a value\n";

  cout<<"2) Subtract a value\n";

  cout<<"3) Multiply a value\n";

  cout<<"4) Divide a value\n";

  cout<<"5) Calculate the Square Root of a Value\n";

  cout<<"6) Calculate a Right Triangle's 3rd side\n";

  cout<<"7) Conversion\n";

  cout<<" Nth term of an Arithmetic Sequence\n";

  cout<<"\n";

  cout<<"Drop the number of your choice:\n";

  cin>>choice;

  int a,x,arr[x],sum=0, dif=0, mul=1, div=1;

    while(choice==1){

      cout<<"\n";

      cout<<"Number of values you want to add: ";

      cin>>x;

      cout<<"\n";

      for(a=0;a<x; a++){

      cout<<"Enter your value: ";

      cin>>arr[a];}

      for(a=0;a<x; a++){

        sum=sum+arr[a];}

      cout<<"The sum of your "<<x<<" values is: "<<sum;

      cout<<"\n";

      break;

    }

while(choice==2){

     cout<<"\nHOW MANY NUMBERS WOULD YOU LIKE TO SUBRACT? :"; cin>>x;

      for(a=0;a<x; a++){

      cout<<"ENTER A NUMBER: ";

      cin>>arr[a];

      }

      for(a=0;a<x; a++){

        dif=-(arr[a]+dif);

      }

      cout<<"THE DIFFERENCE OF THE "<<x<<" NUMBERS IS: "<<dif;

      break;

    }

    while(choice==3){

      cout<<"\n";

      cout<<"Number of values you want to multiply: ";

      cin>>x;

      cout<<"\n";

      for(a=0;a<x; a++){

      cout<<"Enter your value: ";

      cin>>arr[a];}

      for(a=0;a<x; a++){

        mul=mul*arr[a];}

      cout<<"The product of your "<<x<<" values is: "<<mul;

       cout<<"\n";

      break;

    }

    while(choice==4){

      cout<<"\nHOW MANY NUMBERS WOULD YOU LIKE TO DIVIDE? :"; cin>>x;

      for(a=0;a<x; a++){

      cout<<"ENTER A NUMBER: ";

      cin>>arr[a];

      }

      for(a=0;a<x; a++){

        div=arr[a]/div;

      }

      cout<<"THE PRODUCT OF THE "<<x<<" NUMBERS IS: "<<div;

      break;

    }

    while(choice==5){

      cout<<"\n";

      cout<<"Enter the number you want to get the Square Root of: ";

      cin>>x;

      cout<<"The Square Root of "<<x<<" is "<<sqrt(x);

      break;

    }

    while(choice==6){

      char choice; float S1, S2, S3;

      cout<<"\n";

      cout<<"Select the 3rd side of Right Triangle you need (Enter your choice in a CAPITAL LETTER)\n";

      cout<<"\n";

      cout<<"A)Opposite (Side 1)\n";  

      cout<<"B)Adjacent (Side 2)\n";

      cout<<"C)Hypotenuse (Side 3)\n";

      cout<<"\n";

      cin>>choice;

      cout<<"\n";

      switch(choice){

        case('A'):

          cout<<"Enter value for Adjacent Side: ";

          cin>>S2;

          cout<<"Enter value for the Hypotenuse: ";

          cin>>S3;

          cout<<"\n";

          cout<<"The value of the Opposite Side is: "<<sqrt((S3*S3)-(S2*S2));

          break;

        case('B'):

          cout<<"Enter value for Opposite Side: ";

          cin>>S1;

          cout<<"Enter value for the Hypotenuse: ";

          cin>>S3;

          cout<<"\n";

          cout<<"The value of the Adjacent Side is: "<<sqrt((S3*S3)-(S1*S1));

          break;

        case('C'):

          cout<<"Enter value for Opposite Side: ";

          cin>>S1;

          cout<<"Enter value for Adjacent Side: ";

          cin>>S2;

          cout<<"\n";

          cout<<"The value of the Hypotenuse is: "<<sqrt((S1*S1)+(S2*S2));

          break;

        default:

          cout<<"Invalid Entry";

          break;

      }

    }

     while(choice==7){

    cout<<"\n1)CENTIMETER TO INCH     2)OUNCE TO LITER\n";

    cout<<"3)KILOGRAM TO POUND      4)CELSIUS TO FAHRENHEIT\n\n";

    cin>>choice;

      switch(choice){

        case(1):

          cout<<"\nCENTIMETERS: "; cin>>num;

          cout<<"\n"<<num<<"cm = "<<num/2.54<<"in";

          break;

        case(2):

          cout<<"\nOUNCE/S: "; cin>>num;

          cout<<"\n"<<num<<"oz = "<<num/33.814<<" Liter/s";

          break;

        case(3):

          cout<<"\nKILOGRAM/S: "; cin>>num;

          cout<<"\n"<<num<<"kg = "<<num*2.20462<<"lb";

          break;

        case(4):

          cout<<"\nCELSIUS: "; cin>>num;

          cout<<"\n"<<num<<"°C = "<<((num*1.8)+32)<<"°F";

          break;

        default:

          cout<<"Invalid Entry";

          break;

        }

    }

    while(choice==8){

   

   

      }

    }

 

}

 

[Phc-Joshua]

Ano error?

 

[alnlm]

mali po yung sagot na lumalabas pag subtraction na at division

 

[fuzzywubby]

Newbie palang ako sa cpp. Patambay muna baka may matutunan hehe

 

[Katipunero-]

Bakit hindi "Switch-Case" ang ginamit mo sa choices para di ka malito? Tas gawa ka ng function na nagre-return ng value dipende sa operation na gusto ni user.

 

[alnlm]

yun nga po sana kaso hindi po akin yung code, sa kaibigan ko yan, as much as possible onti lang na modifications

 

[alnlm]

okay naman sana kaso mali yung value ng variable na "dif" at

while(choice==2)

{

cout<<"\nHOW MANY NUMBERS WOULD YOU LIKE TO SUBRACT? :"; cin>>x;

for(a=0;a<x; a++){

cout<<"ENTER A NUMBER: ";

cin>>arr[a];

}

for(a=0;a<x; a++)

{

dif=-(arr[a]+dif); (triny ko na din po imodify to kaso wala talaga)

}

cout<<"THE DIFFERENCE OF THE "<<x<<" NUMBERS IS: "<<dif;

break;

}

at nung "div" dito

while(choice==4){

cout<<"\nHOW MANY NUMBERS WOULD YOU LIKE TO DIVIDE? :"; cin>>x;

for(a=0;a<x; a++){

cout<<"ENTER A NUMBER: ";

cin>>arr[a];

}

for(a=0;a<x; a++){

div=arr[a]/div; (dito din po)

}

cout<<"THE PRODUCT OF THE "<<x<<" NUMBERS IS: "<<div;

break;

}

 

[Arcturus]

Saet sa mata haha, palagay sa cpp code na container ts.

 

[alnlm]

sorry po hahah ayan na po