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(Storing variables): Mention that only most variables are void to

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Jay Belanger 2005-05-21 16:03:42 +00:00
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man/calc.texi
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@ -28292,9 +28292,9 @@ pushes the old value of @samp{a} on the stack and stores @samp{a = 6}.
@pindex calc-unstore
@cindex Void variables
@cindex Un-storing variables
Until you store something in them, variables are ``void,'' that is, they
contain no value at all. If they appear in an algebraic formula they
will be left alone even if you press @kbd{=} (@code{calc-evaluate}).
Until you store something in them, most variables are ``void,'' that is,
they contain no value at all. If they appear in an algebraic formula
they will be left alone even if you press @kbd{=} (@code{calc-evaluate}).
The @kbd{s u} (@code{calc-unstore}) command returns a variable to the
void state.