How to convert number to real number?

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Veronika 2015-3-20

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评论： Veronika 2015-3-20

采纳的回答： John D'Errico

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Dear all,

My code calculates the MSE as a result

perf =
    1.1970e-011

How I convert this type of number to real or some "normal" number?

Thank you for your answers.

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Stephen23 2015-3-20

This might help too:

http://en.wikipedia.org/wiki/Scientific_notation

Veronika 2015-3-20

This is what I want. Thank you.

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John D'Errico 2015-3-20

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This is a real number. Just small enough that scientific notation was employed to display it, to avoid a plethora of zeros. There is NOTHING abnormal about it.

1.1970e-011 == 1.1970 * 10^(-11)
help format

For the second time recently, I find myself amazed that kids no longer learn what scientific notation is in school anymore.

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Stephen23 2015-3-20

编辑：Stephen23 2015-3-20

It begs the question: if 1.1970e-011 written as a "normal" number would be 0.00000000001197, how should they then write 7e-303 ?

I would love to read an astronomy report written by that class!

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