# LSL Partial Sums Benchmark

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```//
//   The Computer Language Shootout
//   http://shootout.alioth.debian.org/
//
//   contributed by Isaac Gouy
//   modifed by Babbage Linden
//

test()
{
integer n = 250;

float twothirds = 2.0/3.0;

float a1 = 0.0;
float a2 = 0.0;
float a3 = 0.0;
float a4 = 0.0;
float a5 = 0.0;
float a6 = 0.0;
float a7 = 0.0;
float a8 = 0.0;
float a9 = 0.0;
float alt = -1.0;

integer k;
for (k=1; k <= n; k++)
{
float k2 = llPow(k,2);
float k3 = k2*k;
float sk = llSin(k);
float ck = llCos(k);
alt = -alt;

a1 += llPow(twothirds,k-1);
a2 += llPow(k,-0.5);
a3 += 1.0/(k*(k+1.0));
a4 += 1.0/(k3 * sk*sk);
a5 += 1.0/(k3 * ck*ck);
a6 += 1.0/k;
a7 += 1.0/k2;
a8 += alt/k;
a9 += alt/(2.0*k -1.0);
}

llSay(0, (string)a1 + " (2/3)^k");
llSay(0, (string)a2 + " k^-0.5");
llSay(0, (string)a3 + " 1/k(k+1)");
llSay(0, (string)a4 + " Flint Hills");
llSay(0, (string)a5 + " Cookson Hills");
llSay(0, (string)a6 + " Harmonic");
llSay(0, (string)a7 + " Riemann Zeta");
llSay(0, (string)a8 + " Alternating Harmonic");
llSay(0, (string)a9 + " Gregory");
}

time()
{
llResetTime();
llSay(0, "Starting tests...");
test();
llSay(0, "Finished tests in " + (string)llGetTime() + "s");

}

default
{
state_entry()
{
time();
}

touch_start(integer num)
{
time();
}
}
```