question about entering vectors by the keyboard
- To: mathgroup at smc.vnet.net
- Subject: [mg16862] question about entering vectors by the keyboard
- From: "David P. Johnson" <johnson at ae.msstate.edu>
- Date: Thu, 1 Apr 1999 21:35:29 -0500
- Organization: Mississippi State University
- Sender: owner-wri-mathgroup at wolfram.com
I have a question about entering vectors (1D lists) by keyboard.
Unfortunately, it is difficult to explain in just text, so I have
included a mathematica notebook file below. Any help would be most
appreciated.
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Notebook[{
Cell["\<\
I use the notebook front end on a Macintosh, although I suspect \
that the syntax is similar on other platforms.\
\>", "Text"],
Cell[TextData[{
"When I evaluate ",
"MatrixForm[{2,3,4}]",
", I get ",
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"."
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Cell["\<\
I can copy the above output, paste it below as input, and evaluate \
it. I get {2,3,4}.\
\>", "Text"],
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Cell[BoxData[
InterpretationBox[
RowBox[{"(", GridBox[{
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Cell[BoxData[
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Cell["This is good so far.", "Text"],
Cell[TextData[{
"But now, I type \"( 2 \[ControlKey]-\[ReturnKey] 3 \[ControlKey]-\
\[ReturnKey] 4 \[ControlKey]-\[SpaceKey] )\", which looks the same as
before, \
i.e. ",
Cell[BoxData[
FormBox[
RowBox[{"(", GridBox[{
{"2"},
{"3"},
{"4"}
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". But when I evaluate it, I get {{2},{3},{4}}, enstead of {2,3,4}."
}], "Text"],
Cell[CellGroupData[{
Cell[BoxData[
RowBox[{"(", GridBox[{
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Cell["This is bad.", "Text"],
Cell["\<\
I've tried Create Table/Matrix/Palette, with the same result.\
\>",
"Text"],
Cell[TextData[{
"So, is there any way to enter a vector in this format ",
Cell[BoxData[
InterpretationBox[
RowBox[{"(", GridBox[{
{"2"},
{"3"},
{"4"}
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MatrixForm[ {2, 3, 4}]]]],
" and get {2,3,4} as output, without having to use the Flatten[ ]
command? \
"
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00000000000000000000000000000000\>"
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--
David
->(Signature continues here)