In Polynomial Shift F-D is not working
The F-D key converts a displayed result from fraction to decimal and vice-versa.
If in the polynomial expression a numerical coefficient is a fraction just
enter it as a fraction, possibly enclosed in parentheses. If it is a
decimal number just enter it as a decimal number. Converting it to a
fraction is not going to generate any more precision in the result. You
lose precision when you go from fraction to decimal, but you do not make
a number more precise by converting it from a decimal representation to
a fraction.
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