单词例句
The value of pi is approximately 3.14159.
π的值大约是3.14159。
The circumference of a circle is calculated using the formula 2πr.
圆的周长通过公式2πr计算得出。
Engineers use pi in calculations for various applications, such as fluid dynamics.
工程师在流体动力学等应用中使用π进行计算。
Pi Day is celebrated on March 14th (3/14) every year.
每年的3月14日（3/14）是庆祝π日的日子。
The area of a circle can be found by squaring the radius and multiplying it by pi.
圆的面积可以通过将半径平方然后乘以π来找到。
In trigonometry, pi radians equals 180 degrees.
在三角学中，π弧度等于180度。
Pi appears in many mathematical formulas beyond just circles, like in probability and statistics.
π不仅仅出现在圆的数学公式中，在概率和统计等领域也出现。
Archimedes used polygons to approximate the value of pi.
阿基米德用多边形来近似π的值。
The symbol π was first used by William Jones in 1706.
符号π首次由威廉·琼斯于1706年使用。
The quest to calculate more digits of pi has been ongoing since ancient times.
自古以来，人们一直在追求计算π更多位数的任务。