Anonymous user
Pi: Difference between revisions
Second D version
(Second D version) |
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Line 414:
862803482
534211706</pre>
===Alternative version===
<lang d>import std.stdio, std.bigint;
void main() {
int ndigits = 0;
auto q = BigInt(1);
auto r = BigInt(0);
auto t = q;
auto k = q;
auto n = BigInt(3);
auto l = n;
bool first = true;
while (ndigits < 1_000) {
if (4 * q + r - t < n * t) {
write(n); ndigits++;
if (ndigits % 70 == 0) writeln();
if (first) { first = false; write('.'); }
auto nr = 10 * (r - n * t);
n = ((10 * (3 * q + r)) / t) - 10 * n;
q *= 10;
r = nr;
} else {
auto nr = (2 * q + r) * l;
auto nn = (q * (7 * k + 2) + r * l) / (t * l);
q *= k;
t *= l;
l += 2;
k++;
n = nn;
r = nr;
}
}
}</lang>
Output:
<pre>3.141592653589793238462643383279502884197169399375105820974944592307816
4062862089986280348253421170679821480865132823066470938446095505822317
2535940812848111745028410270193852110555964462294895493038196442881097
5665933446128475648233786783165271201909145648566923460348610454326648
2133936072602491412737245870066063155881748815209209628292540917153643
6789259036001133053054882046652138414695194151160943305727036575959195
3092186117381932611793105118548074462379962749567351885752724891227938
1830119491298336733624406566430860213949463952247371907021798609437027
7053921717629317675238467481846766940513200056812714526356082778577134
2757789609173637178721468440901224953430146549585371050792279689258923
5420199561121290219608640344181598136297747713099605187072113499999983
7297804995105973173281609631859502445945534690830264252230825334468503
5261931188171010003137838752886587533208381420617177669147303598253490
4287554687311595628638823537875937519577818577805321712268066130019278
76611195909216420198</pre>
=={{header|Go}}==
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