Unverified50% confidenceFactExact time
1-σ椭圆在二维平面上对应约39%置信区间,2-σ约86%,3-σ约99%
1
Sources
50%
Confidence
Long-term
Relevance
7/14/2026
First Seen
Sources
Related Claims
Unverified常见规格内径以毫米标注,如φ2.4、φ3.2、φ4.8、φ6.4等,对应收缩后内径约为标称值的一半(2:1比例)63% similarUnverified对于双精度浮点数,在数值 1.0 附近一个 ULP 约为 2^-52 ≈ 2.22×10^-1663% similarUnverified双精度浮点(double,64位)能精确表示±2^53范围内的整数,但对于完整的64位整数除法仍然无法覆盖61% similarUnverified单精度浮点(float,32位)尾数只有23位,能够精确表示的整数范围约为±2^2460% similarUnverifiedUD-Q4_K_XL体积155GB精度96%,UD-Q3_K_XL体积129GB精度87%,UD-IQ3_S体积117GB精度83%,UD-Q2_K_XL体积97GB精度79%60% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/503456API
curl https://kongchang.com/api/v1/knowledge/claims/503456MCP
get_claim(id=503456)