Equation Icon  -15 - c1- c3 < 1 × 10 , (c1 + c3)2(c2+ 3c1c3 - 2c4) -----------1-2-------------< 1.4× 10-31, c1 (c3--c4)2- -30 (102) |c + c | < 1 × 10 , 1 4 c4- c2 - c3 -19 ------------< 3 × 10 c1