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How to write python program to calculate pi?

From where? sys？ Import? stdout？

Scale? =? 10000?

maxarr？ =? 2800?

Arini? =? 2000?

Carrying? =? 0?

arr？ =? [arrinit]？ *? (maxarr？ +? 1)?

For what? Me? Are you online? xrange(maxarr， 1,? - 14):?

Total? =? 0?

For what? j？ Are you online? Xrange (I, 0,? - 1):?

Total? =? (Total? *? j)？ +? (scale? *? arr[j])？

arr[j]？ =? Total? %? ((j？ *? 2)? -? 1)?

Total? =? Total? /? ((j？ *? 2)? -? 1)?

stdout.write("%04d "？ %? (carry? +? (Total? /? Scale))?

Carrying? =? Total? %? scale