half bfloat float double Value Position within Significand–Exponent Range Evaluation in Base-2 (−1 2 ) 2 ×​ 10 2 ( 2 − 2 )​ ×​ . 2 Evaluation in Base-10 ×​ 2 ×​ . Exact Base-10 Value Delta to Next/Previous Representable Value Delta to Next Representable Value