Changing output size of MatrixForm

Question

I have a matrix with a large amount of numbers in the rows.

matrix = Table[i + j, {i, 5}, {j, 30}];
matrix // MatrixForm

The problem is that my notebook is required to wrap everything up at paper length. The output matrix created by MatrixForm as a result does not show up complete in the notebook. Large amount of numbers are cut off. I was wondering how I could make the matrix appear completely in my notebook. Whether this is done by scaling the matrix size or changing font?

Answer 1

Whether this is done by scaling the matrix size or changing font?

One option is to use Style with specific font size of your choosing

matrix = Table[i + j, {i, 5}, {j, 30}];
Style[MatrixForm[matrix], 8]

Answer 2

You can use Pane[]:

matrix = Table[i + j, {i, 5}, {j, 30}];
Pane[matrix // MatrixForm, ImageSize -> Full, 
 ImageSizeAction -> "ShrinkToFit"]

Answer 3

It can also be done with Magnify or by giving the Magnification option to Style. Like so:

This method has the advantage that it works event if the items in the table are not textual.

For those who feel the code needs to be posted in copyable form:

matrix = Table[i + j, {i, 5}, {j, 30}];

Magnify[matrix // TableForm, .55]

Style[matrix // TableForm, Magnification -> .55]

table = ConstantArray[Unevaluated[RandomColor[]], {2, 30}];

Magnify[table // TableForm, .6]

Answer 4

If there are too many numbers they become impossible to read anyway... how about using ArrayPlot?

matrix = Table[i + j, {i, 5}, {j, 30}];
ArrayPlot[matrix]