Make sure that you understand how addDigits( number, base ) works!

```
#!/usr/bin/python

import sys

def addDigits( number, base ):
    if( number ):
        return( addDigits( number // base, base ) + ( number % base ) )
    else:
        return( 0 )

def wrapper( number, base=10 ):
    if( ( addDigits( number, base ) ) % 2 ):
        return True
    else:
        return False

if( __name__ == "__main__" ):
    if( len( sys.argv ) != 2 ):
        sys.stderr.write( "usage: " + sys.argv[ 0 ] + " <integer>\n" )
        exit( 127 )

    print wrapper( int( sys.argv[ 1 ] ) )
```

6 0

3 years ago

Write a C++ program to Calculate the value of π from the infinite series Print a table that shows the value of π approximated by

nata0808 [166]

The C++ program is an illustration of loops and conditional statements

<h3>How to analyze the infinite series</h3>

The infinite series is given as:

$\pi = 4 - \frac 43 + \frac 45 - \frac 47 + \frac 49 -\frac 4{11} + ....$

The above series shows that, the addition and the subtraction signs are interchanged, and the denominator of the fractions increase by 2 while the numerator remains the same

<h3>The main program</h3>

The program written in C++, where comments are used to explain each line is as follows:

#include <iostream>

using namespace std;

int main(){

//This initializes the value of pi to 0

double pi = 0;

//This iterates from 1 to 200000

for(int i = 0; i< 200000; i++){

//The following conditions determine the value of pi

if(i%2==0){

pi+=4.0/(1.0+2.0*i);

}

else{

pi-=4.0/(1.0+2.0*i);

}

//This prints the value of pi

cout<<pi;

return 0;

}

Read more about loops and conditional statements at:

brainly.com/question/24833629

3 0

2 years ago