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scientific mode for powers


Hello,
I am new to mathematica. I use it to convert 7th order polynomials to 5th
order polynomials. I plot them with gnuplot afterwards.
Doing so, it is quite time-consuming to change the syntax. As far as I got
it, mathematica just does not understand if numbers are given in scientific
mode you know from Fortran or C. So, for each and every number, I have to
change e.g.

-8.670077820E-06 into -8.670077820*10^-06 and back again.

(Additionally, gnuplot doesn't understand 10^-06 but needs 10**-06)

Does anyone know how to convert from scientific mode to "10^xx"-notation
automatically?

Thanks in advance,
Bernhard Hidding



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