dData0a = dData0b = dData[0];

dData1a = dData1b = dData[1];

dData2a = dData2b = dData[2];

mul0 = dData0a * dData0b;

mul1 = dData1a * dData1b;

mul2 = dData2a * dData2b;

dist2 = mul0 + mul1 + mul2;