noun
extended double-precision
Technical term in computing for a floating-point format with higher precision than standard double-precision, often 80-bit or similar.
このプロセッサは拡張倍精度の演算をサポートしている。
This processor supports extended double-precision operations.
Compound of 拡張 (extension) + 倍精度 (double-precision), a calque from English 'extended double-precision'.