//this calc has no data[0], just a lower and upper estimate. set data[0] to lower estimate.
data[0] = data[1];
if (data[1] > data[2]) { data[1] = data[2]; data[2] = data[0]; }
//this calc has no data[0], just a lower and upper estimate. set data[0] to lower estimate.
data[0] = data[1];
if (data[1] > data[2]) { data[1] = data[2]; data[2] = data[0]; }