noun
long precision floating point number
Technical computing term for a floating-point number with extended precision, often used in scientific or engineering contexts.
この計算には長精度浮動小数点数が必要です。
This calculation requires long precision floating point numbers.
Compound of 長 (long), 精度 (precision), and 浮動小数点数 (floating-point number). A direct technical calque from English.