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C++ Programs for Mathematical Operations and Decision Making, Study notes of C programming

Vassar College (VC)C programming

C++ code snippets for various mathematical operations and decision making tasks. The programs include determining if a number is positive or negative, finding the largest and smallest numbers among three given numbers, calculating the perfect weight for males and females based on height, and performing complex mathematical calculations. These programs can be used as study or reference materials for students and professionals learning C++ programming.

What you will learn

  • How does the second C++ program determine the largest and smallest numbers among three given numbers?
  • What is the purpose of the first C++ program in the document?

Typology: Study notes

2021/2022

Uploaded on 09/27/2022

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bg1
//Q1
#include <iostream>
using namespace std;
int main()
{ int num;
cout <<"num = ";
cin>>num;
if (num >0)
{if(num%2==0)
cout << "the number is positive and even" ;
else
cout << "the number is positive and odd" ;
}
else
{if(num%2==0)
cout << "the number is negative and even" ;
else
cout << "the number is negative and odd" ;
}
return 0;
}
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#include using namespace std; int main() { int num; cout <<"num = "; cin>>num; if (num >0) {if(num%2==0) cout << "the number is positive and even" ; else cout << "the number is positive and odd" ; } else {if(num%2==0) cout << "the number is negative and even" ; else cout << "the number is negative and odd" ; } return 0;

#include using namespace std; int main() { int n1, n2, n3, smallest, largest; cout << " Enter n1="; cin >> n1 ; cout << " Enter n2="; cin >> n2 ; cout << " Enter n3="; cin >> n3 ; if((n1 >= n2) && (n1 >= n3)) cout << "Largest number: " << n1<<endl; else if ((n2 >= n1) && (n2 >= n3)) cout << "Largest number: " << n2<<endl; else cout << "Largest number: " << n3<<endl; if((n1 <= n2) && (n1 <= n3)) cout << "Smallest number: " << n1<<endl; else if ((n2 <= n1) && (n2 <= n3)) cout << "Smallest number: " << n2<<endl; else cout << "Smallest number: " << n3<<endl; return 0;

#include #include <math.h> using namespace std; int main() { int X,Y; float W; cout <<"X = "; cin>>X; cout <<"Y = "; cin>>Y; if (X>0 && Y<0) { W=(X+Y); cout << "W= "<< W ; } else if (X==0 && Y>0) { W=(pow(X,2)pow(Y,3))+5X; cout << "W= "<< W ; } else if (X<0 && Y==0) { W=(2X/3Y)+4*X; cout << "W= "<< W ;

else cout << "Wrong entry" ; return 0; } //Q #include #include <math.h> using namespace std; int main() { float x,y; cout <<"x = "; cin>>x; switch (x>10) { case 1: { y=pow((pow(x,3)/2),4)-4; cout << "y= "<< y ; break; } default: { switch(x==10) { case 1: