pi
Happy pi day to all of you!!!pi
3.14159265358979323846264338327950288419716939937510582097494459230781640628pi
#include<iostream>
#include<iomanip>
// /*base(27) 29421 796842 */ ;)
int main (){
std::cout<<"Please enter a small real number:\t";
double smallnumb;
std::cin>>smallnumb;
double element1{0.0f};double element2{0.0f};
double summed2{0.0f};
double n{0.0f};size_t counter{1};
while(true){
element1=(4.0f/(n+1.0f));
element2=(4.0f/(n+3.0f));
summed2+=(element1-element2);
n+=4.0f;
counter+=1;
if(element1<=smallnumb||element2<=smallnumb){
break;
}
}
std::cout<<std::fixed<<std::setprecision(10)<<summed2<<std::endl;
std::cout<<counter/2<<std::endl;
return 0 ;
}pi
# pi - 25 fractional digits
pi = 3.1415926535897932384626433
# pi - 50 fractional digits
pi = 3.14159265358979323846264338327950288419716939937510
# pi - 100 fractional digits
pi = 3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679
# pi - 1000 fractional digits
pi = 3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491298336733624406566430860213949463952247371907021798609437027705392171762931767523846748184676694051320005681271452635608277857713427577896091736371787214684409012249534301465495853710507922796892589235420199561121290219608640344181598136297747713099605187072113499999983729780499510597317328160963185950244594553469083026425223082533446850352619311881710100031378387528865875332083814206171776691473035982534904287554687311595628638823537875937519577818577805321712268066130019278766111959092164201989Copyright © 2021 Codeinu
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