Question

For your initial posting pick one of the popular computer programming languages (e.g. Java, C, C++, C#, Python, Ruby, etc.), determine the name of one of the function libraries that is provided by this programming language.

List and describe at least 3 of the library functions in this library.

Describe how this library is included in the source code for a program in this language so that to use a function only the function's name need to be mentioned.

Answer 1

C++

Library -------- <cmath>

Functions

1. sqrt(x) ------returns the sqrt of x
2. pow(x,y) ----- returns x raise to power y
3. min(x,y) ----- returns the minimum value among x and y

Usage

#include <iostream>
#include <cmath>
using namespace std;

int main() {
  
   //sqrt(x)
   printf("Sqrt of 25 : %.2f",sqrt(25));
  
  
//pow(x,y)
printf("\n2 raise to power 5 : %.2f",pow(2,5));
  
  
//min(x,y)
printf("\nMin of 45.6 and 78.3 : %.2f",min(45.6,78.3));
  
  
   return 0;
}
Output:

Sqrt of 25 : 5.00
2 raise to power 5 : 32.00
Min of 45.6 and 78.3 : 45.60

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