先填表，再熟记表中的数。π2&

π;{)|+s9E-S6a7u8C

2π;{)|+s9E-S6a7u8C

3π;{)|+s9E-S6a7u8C

4π;{)|+s9E-S6a7u8C

5π;{)|+s9E-S6a7u8C

6π;{)|+s9E-S6a7u8C

7π;{)|+s9E-S6a7u8C

8π;{)|+s9E-S6a7u8C

9π;{)|+s9E-S6a7u8C

3.14;{)|+s9E-S6a7u8C

:`.U:L:R;{)|+s9E-S6a7u8C

'^,h,Y;p;i4c5P-d6a)M6f(]6l1M;{)|+s9E-S6a7u8C

'y3i6B:w4H9G+{(R2j;{)|+s9E-S6a7u8C

*l6},F9E3m:n0I;{)|+s9E-S6a7u8C

*]*G0t(s*H5c(T;{)|+s9E-S6a7u8C

'c+U's/]1L+n+z;{)|+s9E-S6a7u8C

0x;O2b.A;{)|+s9E-S6a7u8C