Commit 1d284913 authored by Richard M. Stallman's avatar Richard M. Stallman
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Floating point is always available; say a little about what it is.

parent aab28c42
......@@ -201,9 +201,10 @@ leading @samp{+} or a final @samp{.}.
@node Floating Point Type
@subsection Floating Point Type
Emacs supports floating point numbers (though there is a compilation
option to disable them). The precise range of floating point numbers is
machine-specific.
Floating point numbers are the computer equivalent of scientific
notation. The precise number of significant figures and the range of
possible exponents is machine-specific; Emacs always uses the C data
type @code{double} to store the value.
The printed representation for floating point numbers requires either
a decimal point (with at least one digit following), an exponent, or
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