how do i Evaluate : (2+sqrt(5)) ^ 200000000

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C#

can anyone write a simple code in c# to evaluate the above.

answer should be in digits not in exponentional form

Posted 24-Dec-11 2:30am

Member 8043849

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Sergey Alexandrovich Kryukov 24-Dec-11 20:21pm

This is easy bit depends on required accuracy. What are the accuracy requirements?
--SA

3 solutions

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OriginalGriff · Answer 1 · 2011-12-24T02:38:00

Solution 1

Use BigInteger[^]

Posted 24-Dec-11 2:38am

OriginalGriff

Comments

CPallini 24-Dec-11 12:16pm

Do you use BigIntegers for real number computations?

Sergey Alexandrovich Kryukov 24-Dec-11 20:20pm

Why not? Using some thinking, it's possible...
--SA

Sergey Alexandrovich Kryukov 24-Dec-11 20:23pm

Anyway, I voted 5 for the answer. Actual calculation can be left for home exercise. :-)
--SA

idle63 · Answer 2 · 2011-12-24T05:01:00

Solution 3

A very straight forward thing for parsing:
A Calculation Engine for .NET[^]

Regards.

Posted 24-Dec-11 5:01am

idle63

Updated 24-Dec-11 5:13am

v2

Amir Mahfoozi · Answer 3 · 2011-12-24T04:55:00

Solution 2

To compute that expression use this :
An extensible math expression parser with plug-ins[^]

And to show double type results without any decimal points you should format it as this :

C#

String.Format("{0:0.}", result)

Hope it helps.

Posted 24-Dec-11 4:55am

Amir Mahfoozi