Unverified50% confidenceFactExact time
The machine precision of double-precision floating-point numbers is approximately 2.22 × 10^-16.
1
Sources
50%
Confidence
Long-term
Relevance
10/1/2026
First Seen
Sources
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Related Claims
UnverifiedA double-precision floating-point number can accurately represent approximately 15–17 significant decimal digits.78% similarUnverifiedFor double-precision floating-point numbers, one ULP near the value 1.0 is approximately 2^-52 ≈ 2.22×10^-16.74% similarUnverifiedAt fp16 precision, each value occupies 2 bytes.71% similarUnverifiedSingle-precision floating-point (float, 32-bit) has only 23 mantissa bits, and can precisely represent integers in the range of approximately ±2^24.68% similarUnverified在Transformer架构中，每个参数在BF16精度下占2字节，INT8精度下占1字节，INT4精度下占0.5字节67% similar
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