[Tex/LaTex] siunitx: scientific notation

math-modesiunitxunits

I want to use scientific notation with the siunitx package. However, when I try to do it I am getting an error:

The width of a human hair is \SI{1 \times 10^{-4}}{m}.

This has always given me a LaTeX Error" invalid character '10^{-4}' in numerical input

Is there a better way to do this while continuing to use siunitx?

Thanks!

Best Answer

Sure: \SI{1e-4}{\metre}.

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