双
精
度
浮
点
数
s
h
u
ā
n
g
j
ī
n
g
d
ù
f
ú
d
i
ǎ
n
s
h
ù
Definitions
1. double-precision floating-point number
Components
双
Shuāng
–
surname Shuang
精度
jīng dù
–
precision
浮点数
fú diǎn shù
–
(computing) floating-point number