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convert output

asked 2014-07-31 21:30:30 +0200

Tomy gravatar image

updated 2014-07-31 21:31:05 +0200

Hello, if a function gives an output like this

2.00000000000000 - 2.77555756156289e-17*I

how could one convert it to be simply



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If you can give us the exact command which does this, it would be helpful. Sometimes this is a bug, and similar ones have been tracked (and fixed). Thanks!

kcrisman gravatar imagekcrisman ( 2014-08-02 03:34:45 +0200 )edit

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answered 2014-08-04 21:05:54 +0200

niles gravatar image

The round function will give you the nearest number with a given number of digits. Note that it only works for real numbers, so you should round the real and imaginary parts separately.

If you just want to display fewer digits, but have sage remember more precision, then you can use python string formatting. See this question.

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answered 2014-07-31 21:46:20 +0200

FrédéricC gravatar image

Maybe something like that ?

sage: QQ(real_part(2.00000000000000 - 2.77555756156289e-17*I))
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Asked: 2014-07-31 21:30:30 +0200

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Last updated: Aug 04 '14