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I need to play with a lot of powers such as 10^-3. 1E-3 does not work for it. Is there any short form for it?

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up vote 8 down vote accepted

I'm surprised there isn't a question about this (i.e. entering numbers in scientific notation) already.

To enter $3\times10^{-3}$, you can write 3*^-3.

For further reference, see Input Syntax: Numbers.

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