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Add comment about which method is used to approximate pi

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neingeist 2014-02-15 13:57:53 +01:00
parent f98e46dbe4
commit ed40922f52
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approximate-pi.c
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@ -6,6 +6,7 @@ double approximate_pi(unsigned int steps) {
double approximate_pi = 4.0;
bool subtract = true;
/* Gregory–Leibniz series */
for (unsigned int i = 2; i <= steps; i++) {
if (subtract) {
approximate_pi -= (4.0 / (i * 2 - 1));