How I can go to a new line in a nested For-loop?

Question

How I can go to a new line in the following code:

M = 2; 
L = 2; 
For[n = 1, n <= M, n++, For[k = 0, k <= L, k++, Print[u[n, k] = n*k]]]

I want to go to a new line after running the inner loop. Can I use \n?

I want to have:

Any suggestions?

@Karsten 7 I want to have new line, for this code I want to have 0 1 2 and the new line 0 2 4. — user45459, May 31, 2017 at 19:25
What are your actual goals here? The approach you've chosen in unlikely to match your goals. In a notebook, print adds a cell to the notebook. — Alan, May 31, 2017 at 19:43
probably better to make a Table and use MatrixForm or TableForm — george2079, May 31, 2017 at 19:48
If you are really intent on "printing" individual items and somewhat controlling the format you can use WriteString[$Output,expr] with "\n" as needed for line breaks. I'd really encourage you not to try to write c in mathematica though. — george2079, May 31, 2017 at 21:22

Mr.Wizard · Accepted Answer · 2017-05-31 20:29:28Z

3

Avoiding For, ApendTo⁽¹⁾⁽²⁾, and GraphicsGrid:

Grid[
  Array[Times, {2, 3}, {1, 0}],
  Spacings -> {4, 1}
]

$\begin{array}{ccccc} 0 & \text{ } & 1 & \text{ } & 2 \\ 0 & \text{ } & 2 & \text{ } & 4 \\ \end{array}$

answered May 31, 2017 at 20:29

Mr.Wizard

270k34 gold badges580 silver badges1353 bronze badges

Add a comment |

garej · Accepted Answer · 2017-05-31 21:23:36Z

3

Perversion of "\n" (StringRiffle):

StringRiffle[Table[i j, {i, 1, 2}, {j, 0, 2}], "\n", "\t"]

answered May 31, 2017 at 21:08

garej

4,8152 gold badges18 silver badges42 bronze badges

Add a comment |

2 Answers 2