pi; ratio of circumference to diameter
Tone colorsmāmámǎmàma
Meanings
1 sense · 3 examplesnoun
pi (π); the mathematical constant representing the ratio of a circle's circumference to its diameter, approximately 3.14159
technicalAn irrational number essential in geometry, trigonometry, and physics. Often approximated as 3.14 or 3.1416 in calculations.
Yuán圆
zhōu周
lǜ率
ππ
de的
zhí值
yuē约
wéi为
sān3
.
diǎn1
yī4
sì1
yī5
wǔ9
。
The value of pi (π) is approximately 3.14159.
Jì计
suàn算
yuán圆
de的
miàn面
jī积
xū需
yào要
yòng用
dào到
yuán圆
zhōu周
lǜ率
。
Calculating the area of a circle requires using pi.
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Gǔ古
dài代
shù数
xué学
jiā家
duì对
yuán圆
zhōu周
lǜ率
de的
jì计
suàn算
zuò做
chū出
le了
jù巨
dà大
gòng贡
xiàn献
。
Ancient mathematicians made tremendous contributions to calculating pi.