Given Pi$.$h and type the corresponding implementation file Pi$.$cpp

$=4-\frac{4}{3}+\frac{4}{5}-\frac{4}{7}+\frac{4}{9}$dots

$//$ Array Class Header file : Pi$.$h

class Pi

public:

$($const int nTerms$)$;

double apprerr$()$;

$//$uses value$()$ function's return and value of M PI$,$ returns approximation error.

void print$()$; $////$uses value$()$ function's return displays it

private:

int $n$;

double value$()$; $//$ return value of pi with assigned number of terms

$]$;

cdots

Pi pi$2(2)$:

pil.print $()$;

cout $$ pil.apprerr$()$

Pi with $2$ terms: $2\mathrm{.}66667$

$0\mathrm{.}47619$

Submit two of your files Array.cpp and Pi$.$cpp in a zipped folder.