So here comes a simple plus scientific calculator. Code is a little long but interesting and easy to understand. Calculations done using only loops.
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#include <iostream.h>
#include <conio.h> //header files used
#include <math.h>
void main_menu();
void simple_cal();
void scientific_cal();
void addition();
void subtraction();
void multiplication();
void division();
void average();
void percentage();
void power(); //Prototypes of functions used
void root();
void sine();
void cosine();
void tangent();
void cosecant();
void secant();
void cotangent();
void log_nat();
void log_com();
void main() //main function
{
main_menu(); //calling main menu function
}
void main_menu() //function for main menu
{
int n;
cout<< "\n\n-Enter 1 if you want to use a Simple Calculator.\n";
cout<< "-Enter 2 if you want to use a Scientific Calculator.\n\n";
cin>>n;
if (n==1)
simple_cal(); //calling simple calculator function
else if (n==2)
scientific_cal(); //calling scientific calculator function
}
void simple_cal() //function for simple calculator
{
int a;
clrscr();
cout<< "\n\t\t\t**** SIMPLE CALCULATOR ****\n";
cout<< "\tAll rights reserved by the programmer MUHAMMAD TALHA YOUNUS..";
cout<< "\n\n-Enter 1 for addition.\n";
cout<< "-Enter 2 for subtraction.\n";
cout<< "-Enter 3 for multiplication.\n";
cout<< "-Enter 4 for division.\n";
cout<< "-Enter 5 for average.\n"; //menu of simple calcuator
cout<< "-Enter 6 for Percentage.\n";
cout<< "-Enter 7 for the power.\n";
cout<< "-Enter 8 for root.\n\n";
cin>>a;
if (a==1)
addition(); //calling addition function
else if (a==2)
subtraction(); //calling subtraction function
else if (a==3)
multiplication(); //calling multiplication function
else if (a==4)
division(); //calling division function
else if (a==5)
average(); //calling average function
else if (a==6)
percentage(); //calling percentage function
else if (a==7)
power(); //calling power function
else if (a==8)
root(); //calling root function
}
void scientific_cal() //funtion for scientific calculator
{
int a;
clrscr();
cout<< "\n\t\t\t**** SCIENTIFIC CALCULATOR ****\n";
cout<< "\tAll rights reserved by the programmer MUHAMMAD TALHA YOUNUS..";
cout<< "\n\n-Enter 1 if you want to find value of Sine Function of an angle.\n";
cout<< "-Enter 2 if you want to find value of Cosine Function of an angle.\n";
cout<< "-Enter 3 if you want to find value of Tangent Function of an angle.\n";
cout<< "-Enter 4 if you want to find value of Cosecant Function of an angle.\n"; //menu of scientific calculator
cout<< "-Enter 5 if you want to find value of Secant Function of an angle.\n";
cout<< "-Enter 6 if you want to find value of Cotangent Function of an angle.\n";
cout<< "-Enter 7 if you want to find value of Natural Logarithm of a number.\n";
cout<< "-Enter 8 if you want to find value of Common Logarithm of a number.\n\n";
cin>>a;
if (a==1)
sine(); //calling sine function
else if (a==2)
cosine(); //calling cosine function
else if (a==3)
tangent(); //calling tangent function
else if (a==4)
cosecant(); //calling cosecant function
else if (a==5)
secant(); //calling secant function
else if (a==6)
cotangent(); //calling cotangent function
else if (a==7)
log_nat(); //calling natural log function
else if (a==8)
log_com(); //calling common log function
}
void addition() //function for addition
{
float a,sum=0.0;
clrscr();
cout<< "\n\t\t\t\t*** ADDITION ***\n";
cout<< "\nEnter the numbers to be added.\n\n\t==>Enter 0 to complete the adddition.\n\n";
cin>>a;
while(a!=0)
{
sum=sum+a;
cin>>a;
}
cout<< "The sum of given numbers is:\t"<<sum<<endl<<endl;
getch();
}
void subtraction() //function for subtraction
{
float a,difference=0.0;
clrscr();
cout<< "\n\t\t\t\t*** SUBTRACTION ***\n";
cout<< "\nEnter the numbers.\n\n\t==>Enter 0 if you want to complete the subtraction.\n\n";
cin>>a;
while(a!=0)
{
difference=difference-a;
cin>>a;
a=-1*a;
}
difference=-1*difference;
cout<< "The difference of given numbers is:\t"<<difference<<endl<<endl;
getch();
}
void multiplication() //function for multiplication
{
float a,product=1.0;
clrscr();
cout<< "\n\t\t\t\t*** MULTIPLICATION ***\n";
cout<< "\nEnter the numbers to be multiplied.\n\n\t==>Enter 1 if you want to complete the multiplication.\n\n";
cin>>a;
while(a!=1)
{
product=product*a;
cin>>a;
}
cout<< "The product of given numbers is:\t"<<product<<endl<<endl;
getch();
}
void division() //function for division
{
float a,b,division;
clrscr();
cout<< "\n\t\t\t\t*** DIVISION ***\n";
cout<< "\nEnter the DIVIDENT.\n\n";
cin>>a;
cout<< "Enter the DIVISOR.\n\n";
cin>>b;
division=a/b;
cout<< "The result is:\t"<<division<<endl<<endl;
getch();
}
void average() //function for average
{
float a,sum=0.0,average;
int i=0;
clrscr();
cout<< "\n\t\t\t\t*** AVERAGE ***\n";
cout<< "\nEnter the numbers.\n\n\t==>Enter 0 if you want to complete the calculation.\n\n";
cin>>a;
while(a!=0)
{
i++;
sum=sum+a;
cin>>a;
}
average=sum/i;
cout<< "The average of given numbers is:\t"<<average<<endl<<endl;
getch();
}
void percentage() //function for percentage
{
float a,b,percentage;
clrscr();
cout<< "\n\t\t\t\t*** PERCENTAGE ***\n";
cout<< "\nEnter the total.\n\n";
cin>>a;
cout<< "Enter the number whose percentage value is to be found.\n\n";
cin>>b;
percentage=(b/a)*100;
cout<< "The percentage is:\t"<<percentage<<"%"<<endl<<endl;
getch();
}
void power() //function for power
{
float a,b,power;
clrscr();
cout<< "\n\t\t\t\t*** POWER ***\n";
cout<< "\nEnter the base.\n\n";
cin>>a;
cout<< "Enter the power.\n\n";
cin>>b;
power=pow (a,b);
cout<< "The entered power of the given number is:\t"<<power<<endl<<endl;
getch();
}
void root() //function for root
{
float a,b,root;
clrscr();
cout<< "\n\t\t\t\t*** ROOT ***\n";
cout<< "\nEnter the number whose root is to be calculated.\n\n";
cin>>a;
cout<< "Enter the root.\n\n";
cin>>b;
b=1/b;
root=pow (a,b);
cout<< "The entered root of the given number is:\t"<<root<<endl<<endl;
getch();
}
void sine() //function for sine
{
int n;
float a,sine_d,sine_r,PI=3.141592654;
clrscr();
cout<< "\n\t\t\t\t*** SINE VALUE ***\n";
cout<< "\nEnter 1 if angle is in degrees.\n";
cout<< "Enter 2 if angle is in radians.\n\n";
cin>>n;
if (n==1)
{
clrscr();
cout<<"\n\t\t*** SINE VALUE WHEN ANGLE IS IN DEGREES ***\n";
cout<<"\nEnter the Angle.\n\n";
cin>>a;
sine_d=sin(a*PI/180);
cout<<"The value of SINE Function of given angle is:\t"<<sine_d<<endl<<endl;
}
else if (n==2)
{
clrscr();
cout<<"\n\t\t*** SINE VALUE WHEN ANGLE IS IN RADIANS ***\n";
cout<<"\nEnter the Angle.\n\n";
cin>>a;
sine_r=sin(a);
cout<<"The value of SINE Function of given angle is:\t"<<sine_r<<endl<<endl;
}
getch();
}
void cosine() //function foe cosine
{
int n;
float a,cosine_d,cosine_r,PI=3.141592654;
clrscr();
cout<<"\n\t\t\t\t*** COSINE VALUE ***\n";
cout<<"\nEnter 1 if angle is in degrees.\n";
cout<<"Enter 2 if angle is in radians.\n\n";
cin>>n;
if (n==1)
{
clrscr();
cout<<"\n\t\t*** COSINE VALUE WHEN ANGLE IS IN DEGREES ***\n";
cout<<"\nEnter the Angle.\n\n";
cin>>a;
cosine_d=cos(a*PI/180);
cout<<"The Value of COSINE Function of given angle is:\t"<<cosine_d<<endl<<endl;
}
else if (n==2)
{
clrscr();
cout<<"\n\t\t*** COSINE VALUE WHEN ANGLE IS IN RADIANS ***\n";
cout<<"\nEnter the Angle.\n\n";
cin>>a;
cosine_r=cos(a);
cout<<"The value of COSINE Function of given angle is:\t"<<cosine_r<<endl<<endl;
}
getch();
}
void tangent() //function for tangent
{
int n;
float a,tangent_d,tangent_r,PI=3.141592654;
clrscr();
cout<<"\n\t\t\t\t*** TANGENT VALUE ***\n";
cout<<"\nEnter 1 if angle is in degrees.\n";
cout<<"Enter 2 if angle is in radians.\n\n";
cin>>n;
if (n==1)
{
clrscr();
cout<<"\n\t\t*** TANGENT VALUE WHEN ANGLE IS IN DEGREES ***\n";
cout<<"\nEnter the Angle.\n\n";
cin>>a;
tangent_d=tan(a*PI/180);
cout<<"The Value of TANGENT Function of given angle is:\t"<<tangent_d<<endl<<endl;
}
else if (n==2)
{
clrscr();
cout<<"\n\t\t*** TANGENT VALUE WHEN ANGLE IS IN RADIANS ***\n";
cout<<"\nEnter the Angle.\n\n";
cin>>a;
tangent_r=tan(a);
cout<<"The value of TANGENT Function of given angle is:\t"<<tangent_r<<endl<<endl;
}
getch();
}
void cosecant() //function for cosecant
{
int n;
float a,cosecant_d,cosecant_r,PI=3.141592654;
clrscr();
cout<<"\n\t\t\t\t*** COSECANT VALUE ***\n";
cout<<"\nEnter 1 if angle is in degrees.\n";
cout<<"Enter 2 if angle is in radians.\n\n";
cin>>n;
if (n==1)
{
clrscr();
cout<<"\n\t\t*** COSECANT VALUE WHEN ANGLE IS IN DEGREES ***\n";
cout<<"\nEnter the Angle.\n\n";
cin>>a;
cosecant_d=1/sin(a*PI/180);
cout<<"The value of the COSECANT Function of given angle is:\t"<<cosecant_d<<endl<<endl;
}
else if (n==2)
{
clrscr();
cout<<"\n\t\t*** COSECANT VALUE WHEN ANGLE IS IN RADIANS ***\n";
cout<<"\nEnter the Angle.\n\n";
cin>>a;
cosecant_r=1/sin(a);
cout<<"The value of the COSECANT Function of the given angle is:\t"<<cosecant_r<<endl<<endl;
}
getch();
}
void secant() //function for secant
{
int n;
float a,secant_d,secant_r,PI=3.141592654;
clrscr();
cout<<"\n\t\t\t\t*** SECANT VALUE ***\n";
cout<<"\nEnter 1 if angle is in degrees.\n";
cout<<"Enter 2 if angle is in radians.\n\n";
cin>>n;
if (n==1)
{
clrscr();
cout<<"\n\t\t*** SECANT VALUE WHEN ANGLE IS IN DEGREES ***\n";
cout<<"\nEnter the Angle.\n\n";
cin>>a;
secant_d=1/cos(a*PI/180);
cout<<"The value of the SECANT Function of given angle is:\t"<<secant_d<<endl<<endl;
}
else if (n==2)
{
clrscr();
cout<<"\n\t\t*** SECANT VALUE WHEN ANGLE IS IN RADIANS ***\n";
cout<<"\nEnter the Angle.\n\n";
cin>>a;
secant_r=1/cos(a);
cout<<"The value of the SECANT Function of the given angle is:\t"<<secant_r<<endl<<endl;
}
getch();
}
void cotangent() //function for cotangent
{
int n;
float a,cotangent_d,cotangent_r,PI=3.141592654;
clrscr();
cout<<"\n\t\t\t\t*** COTANGENT VALUE ***\n";
cout<<"\nEnter 1 if angle is in degrees.\n";
cout<<"Enter 2 if angle is in radians.\n\n";
cin>>n;
if (n==1)
{
clrscr();
cout<<"\n\t\t*** COTANGENT VALUE WHEN ANGLE IS IN DEGREES ***\n";
cout<<"\nEnter the Angle.\n\n";
cin>>a;
cotangent_d=1/tan(a*PI/180);
cout<<"The value of the COTANGENT Function of given angle is:\t"<<cotangent_d<<endl<<endl;
}
else if (n==2)
{
clrscr();
cout<<"\n\t\t*** COTANGENT VALUE WHEN ANGLE IS IN RADIANS ***\n";
cout<<"\nEnter the Angle.\n\n";
cin>>a;
cotangent_r=1/tan(a);
cout<<"The value of the COTANGENT Function of the given angle is:\t"<<cotangent_r<<endl<<endl;
}
getch();
}
void log_nat() //function for natural logarithm
{
float a,ln;
clrscr();
cout<<"\n\t\t\t\t*** NATURAL LOGARITHM ***\n";
cout<<"\nEnter the number.\n\n";
cin>>a;
ln=log(a);
cout<<"The value of Natural Logarithm of the given number is:\t"<<ln<<endl<<endl;
getch();
}
void log_com() //function for common logarithm
{
float a,log;
clrscr();
cout<<"\n\t\t\t\t*** COMMON LOGARITHM ***\n";
cout<<"\nEnter the number.\n\n";
cin>>a;
log=log10(a);
cout<<"The value of Common Logarithm of the given number is:\t"<<log<<endl<<endl;
getch();
}
a
Talha please give proper identation and meaningful variable names
ReplyDeleteThank you for suggestion.
DeleteWell done Talha Younus.
ReplyDelete