4Numbers of type double have approximately sixteen significant digits. The accuracy of the operations described above is determined by the number πœ–  , which is the smallest positive number such that 1+ πœ– > 1  . For variables of type float, πœ– β‰ˆ 1.2 Γ—10βˆ’ 7  and for variables of type double πœ– β‰ˆ 2.2Γ— 10βˆ’16  .