Shashwat Anand wrote:
How can it be done ?

>>> import decimal, math
>>> D = decimal.Decimal
>>> decimal.getcontext().prec = 100
>>> sum(D(1) / D(math.factorial(i)) for i in range(1000))
Decimal('2.718281828459045235360287471352662497757247093699959574966967627724076
630353547594571382178525166428')

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