[R] Sweave scientific real display format (e.g. 5e-12)

[BORGULYA Gábor]

Dear All,

I couldn't figure and couldn't google out how to make construct a pair of 
\Sexpr s or a LaTeX macro that would include 
      5\cdot 10^{-12}
into the LaTeX output istead of
      5e-12 .

Any ideas?

Thank you

Gábor